|
Issues Resolved in
4301
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1593592, 1620563
|
Visual anomaly
/ OGL - Far Cry - The corruption is displayed while playing the Far Cry
game several minutes with OpenGL mode.
|
OGL
|
Windows*
XP, Windows* XP-64,Windows* 2000
|
Intel(r)
915G Chipset, Intel(r) 855GME Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: The Shader Cache Index does not take into account the
shader constant, and the shader had been cached with the incorrect
constant.
Fix Description: Remove the constants from the cache and change the
shader cache flow to accomodate this: gfxInitTexEnvConstants and
gfxGenTexenvShader were modified slightly.
The __GFXhnapaTexEnvSignatureState structure was placed inside the
__GFXhnapaTexEnvShaderCache structure and envColorUseMask and oneMinusEnvColorUseMask
are now cached. The Store and
Restore signature state is now done via pointer reference rather than a
structure copy.
To fix
1620563 the max FP Program ENV (__GL_MAX_PROGRAM_ENV_PARAMETERS_FP) limit
was raised from 24 to 32
|
|
BugID: 1584364
|
ISV game-
Second Life by Linden Labs exits to desktop
|
OGL
|
Windows*
XP
|
Intel(r)
915G Chipset
|
|
Resolution Description:
Root Cause: Missing allocation for a variable for the slice
addresses when mipmap generation was enabled.
Fix Description:Allocate appropriate space
for slice addresses that get used in the software path for mipmapgen also.
|
|
BugID: 1601077
|
The
screen shows abnormal blue color while running Glaze3D.
|
OGL
|
Windows*
XP, Windows* 2000
|
Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: 16 bit Color Masks sent to GDI were wrong, should be RGB
instead of BGR.
Fix Description: Fixed Color Masks
|
|
BugID: 1622202
|
Check in
the file igfxcfg\Publics.h which was not checked in under the DCN 427406
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution Description:
Root Cause: Could not build MCCS on Settings page, because using old
MCCS_GET variable.
Fix Description: Update Variable in header file to match new
algorithm.
|
|
BugID: 1617109
|
Bug
fixes for Tibet ID 1617109 - Visual Anomaly CUI2 - F1 help dialog box
displayed outside of application window.
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution Description:
Root Cause: The help text was
displayed at the mouse cursor position.
Fix Description: The help
text is displayed at the control position
|
|
BugID: 1621731
|
CH7009:
The Dot Crawl cannot be reset to default setting after clicking the Restore
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G Chipset, Intel(r) 855GME
|
|
Resolution Description:
Root Cause: Code for Dotcrawl not restored on Restore defaults.
Fix Description: Include missing code.
|
|
BugID: 1619726
|
Unable to change Graphic Options from desktop
|
CUI2
|
Windows*
2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution Description:
Root Cause: The menu handles were destroyed before displaying on
Windows 2000.
Fix Description: The
destruction of menu handle is postponed till the menu is closed and then
destroyed.
|
|
BugID: 1621793
|
Macrovision
- 865G - Chrontel 7009 ADD card:
Video Standard NTSC-443 showing incorrect ACP signal
|
AIM
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G
|
|
Resolution Description:
Root Cause: the issue was due to incorrect programming of the
Macrovision register for NTSC-433 standard.
Fix Description: Corrected the programming for removing the color
stripes in NTSC-433 format when MV is enabled
|
|
BugID: 1618303
|
Functional failure
- Lakeport/915G - CX25902/CH7021 - PowerDVD 5 & 6 unable to play
macrovision protected DVD using component connection on HDTV
|
AIM
|
Windows*
XP, Windows* 2000
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: On the player query of the MS function, driver masked out
the incorrect HDTV standard bits, making the current format unavailable.
Fix Description: Do not mask out current formats, instead mask out
the unavailable SDVO HDTV out per the SDVO capabilities.
|
|
BugID: 1595690
|
Enabling
Additional Supported Input Resolutions for SDVO HDTV Device
|
AIM
|
Windows*
XP, Windows* 2000
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: Not all under scan modes for CH HDTV were supported. Fix Description: Added support in the code for the new under scan
modes. The Chrontel CH7021 TV out part supports scaling many different
resolutions to various HDTV formats.
The CUI will not automatically change resolution or TV standard
based on making a change in the other field. Multiple combinations are selectable.
Root
Cause:
Fix
Description:
|
|
BugID: 1611327
|
Creating
failure paths for memory allocation failures
|
RM
|
Windows*
XP, Windows* 2000
|
Intel(r)
915G Chipset
|
|
Resolution Description:
Root Cause: Not handling failed memory allocations in RM was causing
BSOD with Driver Verifier.
Fix Description: Added graceful handling of memory allocations
|
|
BugID: 1556152, 1436715
|
Display
corruption or blank screen after lid close and open in extended desktop
with CRT+TV
|
miniPort
|
Windows*
XP
|
Intel(r)
915GM Chipset, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: Miniport function MD_Lid_Validation allowed display
switches on all lid close events, even when the system was in Extended
Desktop with two non-LFP displays.
This would result in the existing configuration being disturbed and
possible loss of primary display.
Fix Description: Closing the lid will no longer force a display
switch when the system is in Extended Desktop using two non-LFP displays
|
|
BugID: 1621376
|
System
will be BlueScreen when it returns from S4.
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM Chipset, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: When setting timings for DVO/SDVO device, we access Null
Pointer in Mode_CenterImage function.
Fix Description: Return unsuccessful for null pointers in the
Centering function.
|
|
BugID: 1621796
|
Macrovision
- Alviso/Calistoga - Video Standard NTSC-443/PAL-M showing incorrect ACP
signal
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM Chipset
|
|
Resolution Description: Lock the ACP lock regs after writing the MV regs
Root Cause:
Fix Description:
|
|
BugID: 1597958, 1615711
|
Display is not centred and corruption is seen on 1080
HDTV standard
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM Chipset
|
|
Resolution Description:
Root Cause: unsupported mode was applied on TV Std and was causing
display blank.
Fix Description: Dynamically change the EDID for every TV standard,
to maintain consistence between OS and CUI and prevent unsupported modes to
be applied.
|
|
BugID: 1590887
|
Not able to apply 1080i and 780p on HDTV
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause:The CE extension timings were
not proper in m_CeShortVideoModes
table for 1080i and 720p.
Fix Description: Updated the timing information for “1080i and
720p” in m_CeShortVideoModes table and include code to give priority to DTD
timings if the timings are present in both DTD and in CE extension.
|
|
Issues Resolved in
4297
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1610988
|
64-bit driver files do not follow 8.3 naming convention
|
OGL
|
Windows*
XP-64
|
Intel(r)
915G Chipset, Intel(R) 945G Express
Chipset
|
|
Resolution Description:
Fix for 64-bit driver files do not follow 8.3 naming
convention; changes were made in OpenGL, and glsrv as well as INST files
Root Cause:
Fix Description:
|
|
BugID: 1612492
|
BSOD when changing mode with overlay running
|
DD
|
Windows*
XP
|
Intel(r)
915GM Chipset, Intel(r) 915G Chipset, Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: is that all bits in the
DSPC_CNTR register are cleared without regard to their previous state when turning
off the overlay in GHAL_DisableOverlay2().
Fix Description: Moved code to make
sure the PIPE bit was set correctly when calling functions that disable the
overlay.
A fix was also added to remedy a memory leak when running
ScreenMode.EXE for long periods of time. This change involved reverting
back to a long standing earlier version of code.
|
|
BugID: 1616447
|
LFP Panel Power Cycle and Reference value changes after
resume.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r) 915GM
|
|
Resolution
Description:
Root Cause: When the system boots up,
protection is ON for panel Power sequncing register 61210, therefore
programing the power sequncing is not done (register is read only)
Fix Description: Ensure during power
on, the driver turns off the sequencing reqister with correct update of the
panel control register 61204 (LV03)
|
|
BugID: 1616495,
1619770
|
W - HCT12.1 - XP - S1 hard hang on MGT Dual Display
during Power Management Testing
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution
Description:
Root Cause: During Power down modes, sequence
of turning off the pipe/planes was not waiting for proper vblank in some
scenarios.
Fix Description: Turn off all planes
before loading the registers to setup VGA modes and before turning off
PLLs, turn off only the planes attached to the pipe/PLL. After each plane
disable, wait for the next VBLANK event, to ensure the actual plane is
disabled.
|
|
BugID: 1620281,
1618453
|
Bug fixes for Tibet ID 1620281, 1618453, display switch
issue from twin to MDS
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution
Description:
Root Cause: The group box corresponding
to the rotation is still visible as a borderline when rotation is disabled,
because the hide flag was not set.
Fix Description: in the PageSetting,
set Hide flag for the corresponding control IDC_ROTATION_GROUP
Root Cause: In the OnScreenChange
method, CUI updates the rotation angle for non-rotated to rotated, but does not update for change of rotated
to non-rotated.
Fix Description: In the else block if
the current rotation angle is not 180 degrees, CUI updates the rotation
angle to 0 degrees.
|
|
BugID: 1621637
|
fix for Critical customization issue
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
865G, Intel(r) 915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME
Chipset, Intel(R) 945G Express Chipset, Intel(R) 945GM Express Chipset
|
|
Resolution
Description:
Root Cause: Incorrect variable in Dual
Clone when Color page can be removed as part of Customization make the
screen garbled.
Fix Description: Set the Customization
variable correctly for color page in Clone.
|
|
BugID: 1618014
|
Unable to set LFP as Primary Device in EDT
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution
Description:
Root Cause: When four
devices are attached, the total config combos should be 42, not 24 as
hard-coded in the function check.
Fix Description: Added configuration
variable thought the code, with
the proper value of 42.
|
|
BugID: 1617116
|
Functional Failure / SoftBIOS - TV resolutions 640x480
x60 and 800x600 x60 are listed twice in the Information page
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution
Description:
Root Cause: The driver/softBIOS keeps
the detailed modes section in the EDID, and it may contain modes that are
presented in the established / standard timings.
Fix Description: Ensure CUI gets mode
once and that duplicate modes will not be added, when adding the modes in
detailed rates.
|
|
Issues Resolved in
4289
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1603772
|
There is no persistance with Dot Crawl
|
AIM
|
Windows* XP, Windows* 2000
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: Dotcrawl value will always
be set to 0, because current value is incorrectly compared against default
value '0'. In addition, Bit0 in the result of SDVOGetDotCrawl opcode
considered as Maximum Value but according to EDS it is Current Value.
Fix Description: The current
dotcrawl value is compared against Dotcrawl maxvalue instead of default
value. Similarly changed the SDVOGetDotCrawl interface.
|
|
BugID: 1611623
|
W-DCT- Stability - Morph - Invalid Params - system hangs
|
D3D
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: Context for the
miniport allocator is getting re-intialized and new context (pStatus) not
being set prior to allocation or deletion of defer agp object. The
uninitialized context causing an access violation.
Fix Description: Set context
(pStatus) prior to allocation and de-allocation of deferred agp objects
allocated with miniport allocator
|
|
BugID: 1571228
|
Carractior corruption in D3D test app
|
D3D
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: Texture is
aliased during a D3dLock operation, with new GMM allocation returning with
different pitch than original. The pitch can not be updated on the D3dLock
call and application uses original pitch leading to corruption.
Fix Description: Fail texture aliasing
attempts if new pitch does not equal the old pitch.
|
|
BugID: 1614792
|
Fix to Lakeport BPL alignment problem
|
GMM
|
W2000, XP
|
Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: The BPL alignment
requirement for BPL is 16KB for Lakeport, and was applied to the physical
page causing multiple GTT mapping.
Fix Description: Apply BPL alignment to GTT address.
|
|
BugID: 1598301
|
Illegal refresh rate (FH 23.9kHz, FV 38.0Hz) is shown
after Windows logo.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM Chipset
|
|
Resolution Description:
Root Cause:
DPLLA is being programmed to source it's timings from the
VGA plane/engine, however, the VGA engine has been disabled and this is
causing bogus refresh rate. This is caused by Almador W/A .
Fix Description:Restricting the WA only to
Almador system. Got confirmation from Hardware DE’s
that we don’t need this WA for ALVISO, GDG & SDG & MGM.
|
|
BugID: 1563906
|
Functional Failure / CUI2 – Foxbear - Changing between full screen and
windowed mode causes system to switch from dual display clone to single
display.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: In DDC with LFP,
the driver does not handle properly the mode setting of a LowRes mode.
Fix Description: When RM queries
softbios for a higher mode return the next suitable igh res mode which can
support pixel dobled image.If OS requested mode is a low res mode or the
mode requested by GDI is low res mode then do pixel doubling as a direct
consequence of previos statement.
|
|
BugID: 1594115
|
While playing Call of Duty, game exits to the desktop
|
OGL
|
Windows*
XP, Windows* 2000
|
Intel(R)
945G Express Chipset
|
|
Resolution Description:
The game is specifying an index (for vertex data) that causes an access to a memory location that is
beyond the memory range of the VOB associated for the glDrawRangeElements call.
|
|
BugID: 1602825 , 1615259
|
bug fixes for 1615259, 1602825 and other localization
resource issues
|
CUI2
|
W2000, XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: Current user settings do
not work in Limited User Account : Can neither change Default hotkeys nor
cannot disable hotkeys.
Fix Description: moved CU setting
to LM 2)
Root Cause: Display Expansion
dissapears in Display Setting when
switching from CRT to DFP and back to CRT using CUI Hotkeys.
Fix Description: Added missing
SW_SHOW code. Also fix MCCS function to get the particular opcode's current
value.
|
|
BugID: 1394472
|
memory leak issues , other issues found while fixing
other bugs
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: In hkcmd,igfxtray
and igfxcfg some handles were not closed, memory was not deleted, COM interfaces
were not released.
Fix Description: Closed the
handles that were not closed. Released the interfaces in the correct scope
where it was not released. Resource leaks are also fixed by appropriately
deleting or destroying them.
|
|
BugID: 1614890
|
Bug fixes for Tibet ID 1614890
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause:The extended list
control had a paint issue and it caused the paint problem on vertical page
scroll.
Fix Description: Handled the WM_VSCROLL
message to paint the control properly.
|
|
BugID: 1617761
|
Fix for customization bugs and code changes for dcn
427289
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: When reading the
registry key to get the data whether the tray icon is enabled or disabled,
usage of KEY_WRITE access doesn't work.
Fix Description: Added code to check for
reading doesn’t use the KEY_WRITE access; use this flag only for writing it
into the registry.
|
|
BugID: 1584550
|
Porting to main (14.13) Functional Failure / Soft BIOS -
Hot-Plug/unplug - clone mode - system does not reenter DDC/EDT/DDT mode
when 2nd monitor is reconnected.
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: After removal of
DFP in clone configuration and a refresh of the page triggered by the
hot-plug event, CUI COM returns invalid
configuration and resets the config as single.
Fix Description: Remove the config validity
check on CUICOM initialization, and only validate the config when a call is
issues from CUI layers.
|
|
BugID: 1617047
|
Bug fixes for Tibet ID 1617047
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: The controls in
the IGT page (tray-Icon displaying check-box) are not hidden/showed based
on the customization details
Fix Description: Added the code
to hide/show the control based on the customization.
|
|
Issues Resolved in
4280
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1612566
|
Macrovision - 915G - Conexant CX25902 ADD2 card: Does Not
detect TV.
|
AIM
|
Windows*
XP, Windows* 2000
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset Family
|
|
Resolution Description:
Root Cause: incorrect wiring info was causing the
tv detection failure.
Fix Description: When setting the
input-out SDVO map for the existing configuration in the hardware, include
logic for the multifunction device and existence of two devices of the same
type (Cx).
|
|
BugID: 1603736
|
[On-line Game:'Special Force]anomalies on game menu show
up in online game
|
D3D
|
Windows*
XP
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset Family
|
|
Resolution Description:
Root Cause: The application was clearing the Color
and Depth Buffers the first frame only, then clearing only the Color Buffer
afterwards. The hardware was not
evicting the Z-data for the whole Z-buffer on the first frame.
Fix Description: Changed the
default value to force Z-Evictions for the first frame
|
|
BugID: 1590946
|
Display on LFP is blank after resuming from Hibernation
by disconnecting CRT in EDS.
|
GDI, softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM Chipset
|
|
Resolution Description:
Root Cause: RM/Softbios will not understand
DISPLAY_DONT_CARE as it is not a proper display device. Hence GDI used to
recieve junk value from RM which used to result in system blackout at the
end.
Fix Description: Avoid calling
RM/Softbios whenever a call is coming in for setting/resetting mode, GDI will
return true to OS.
|
|
BugID: 1596324
|
Optimize the physical page allocation and mapping for IMC
format video surface
|
GMM
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description: When allocating physical pages for IMC
(video) surface format, there are some wastage to the righ of Y, U and V
planes. There is even more wastage when we can not find the heap with
matching pitch and have toallocate from a double pitch heap. This
optimization will help our "out of physical memory" issues to
some degree when running video.
Root Cause:
Fix Description:
|
|
BugID: 1610988
|
64-bit
driver files do not follow 8.3 naming convention
|
OGL
|
Windows*
XP, Windows* 2000, Windows* XP-64,
|
Intel(r)
915G Chipset, Intel(R) 945G Express Chipset Family
|
|
Resolution Description:
Root Cause: DOS Naming convention not met.
Fix Description: Rename both 32
bit and 64 bit OGL Dll files and the code involved the names
|
|
BugID: 1440243
|
W-Macrovision
BSOD-0xEA playing DVD and PM resume
|
softBIOS
|
Windows*
XP
|
Intel(r)
855GME Chipset, Intel(r) 865G Chipset
|
|
Resolution Description:
Root Cause: On Monitor Off, driver gets called to turn
off TV, which involves turning off Plane/pipe/DPLL. Turning off P/P/P is
done disregarding checking for flip pending hasn't been completed and on
the next driver call system has BSOD.
Fix Description: Separate the S
and D power state change sequences. This will allow us not to program the
Gfx Chipset PLLs in case of display power state change sequence
|
|
Issues Resolved in
4276
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1563737
|
Driver error with AlwaysOn XD-bit setting
|
CUI2
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
igfxcfg.exe and
hkcmd.exe can't run when XD bit is set to AlwaysOn. We are handling the
crash internally now and no crash will be seen. The app will exit when XD
bit is set to AlwaysOn
Root Cause:
Fix Description:
|
|
BugID: 1584490, 1606187
|
Functional Failure / CUI2 – Wrong Resolution is shown in
CUI2 after installing gfx driver on Win2k., Bug fixes for 1584490 | 1606187
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause:1584490- Buffer for modelist was small.
2k was returning rotated modes and lesser number of checks was being made
in the code.
Fix Description: Increased the buffer size to hold all the possible
modelists.
Root Cause: 1606187 When in clone even though
TV is not active CUI showing TV Settings button. By Disabling tv settings
button when tv is not active will HIDE the issue.
|
|
BugID: 1596383
|
Functional Failure / PM - The display device cannot be
switched from CRT to TV via pressing Ctrl+ Alt+ F2 combination keys after
resuming from Standby (S1) mode.
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: In Hkcmd and Menu, we don’t
have a option to set a mode for the format that
HDTV supports.
Fix Description:
When
switching to HDTV using Hotkeys, set a default mode if the current mode is
not supported.
|
|
BugID: 1603776
|
[ADD2]Driver doesn't detect TV-OUT in CH 7021 ADD2 card
|
AIM
|
Windows*
XP, MCE
|
Intel(r)
915G Chipset
|
|
Resolution Description:
Root Cause: The issue was due to incorrect
mapping done in UAIM driver for SDVOB/SDVOC In0/In1.
Fix Description: Set input-output map accordingly
and map the outputs to the correct input.
|
|
BugID: 1583802
|
Need to change Coinstaller for lake port
|
CoInstaller
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Add the registry
key removal for the CUI keys that are placed into the run location in the
registry.
Root Cause:
Fix Description:
|
|
BugID: 1571958
|
[SL Bench 0.5a]BenchMark screen will be abnormal in
special resolution.
|
D3D
|
Windows*
XP
|
Intel(r)
855GME Chipset
|
|
Resolution Description:
Root Cause: The application was clearing
only the Depth Buffer, so the driver was not setting state which affected
the Color Buffer. However, the
KillPixel and ChromaKey operations were still in effect, so the Clear
wasnot completing.
Fix Description: Now disabling KillPixel and
ChromaKey for Clears not including the Color Buffer, and resetting them
after the Clear operation completes.
|
|
BugID: 1578369
|
MCE - Symphony - MCE bleeding through to front
application
|
D3D
|
Windows*
XP, MCE
|
Intel(r)
915GM, Intel(r) 915G Chipset
|
|
Resolution Description:
Root Cause: D3D driver was not (re)setting the
Buffer Base Address correctly when switching HW contexts. Also took the opportunity to simplify
(clean up) some of the state handling code.
Fix Description: Reset the Buffer Base Address
correctly.
|
|
BugID: 1600489, 1561746
|
Fix for bug 1600489 and 1561746, LFP backlight issue and
FBC/OGL enable/disable
|
miniport/KCH, GHAL, OGL
|
Windows*
XP
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: When disabling DPST or ALS, the
biaadjust/alsadjust was being initialized to the wrong value.
Fix Description: Fixed the initialization value by
adding the proper scaling of 100 to the value. Additional fix for 1561746
-When OGL client is active, FBC is disabled. Always disable FBC in driver
for all Alviso when running on pre C1 Silicon.
|
|
BugID: 1600284
|
FSDOS mode will not switch back to Windows mode untill
you apply ALT+ENTER for 3-times.
|
miniPort
|
Windows*
2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: Following a hot key to switch
display im FSDOS, the dw2kFailDisplaySwitch flag has incorect value and
driver does not switch back to Windiws.
Fix Description:
If the
display switch is not allowed in VALIDATE_CHILD IOCTL then set the
dw2kFailDisplaySwitch flag to 1 only if the FSDOS is not active and the
operating system version is W2K.
|
|
BugID: 1562111
|
[Rotated LCD]A monitor-off function does not work after
rotate 270 degree
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: In setmode call, we were enabling
the port irrespective whether the OS wants the Monitor to be in ON or OFF
state.
Fix Description: Defined a Variable crtPowerState which
defines the Present OS state for the Monitor.In setMode Function based on
this variable we Power On the Port else we switch it OFF.
|
|
BugID: 1578892
|
CUI Advanced Settings under Display Settings are not
functional
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: GMBUS transactions fail on some
MCCS monitors
Fix Description: Use BitBashing for MCCS
transactions on LPT and CST.
|
|
Issues Resolved in
4270
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1575182
|
Hang /
OGL - Homeworld 2 - The blue screen is displayed and the system hangs while
changing the Homeworld 2 game resolution.[REG]
|
OGL
|
Windows*
2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Removed
EngDeleteWnd call as it was causing Driver Verifier to cause a blue
screen. The reason for the problem
was that EngDeleteWnd should only be called in the context of an OpenGL ICD
command (OPENGL_CMD) or a WNDOBJ setup (WNDOBJ_SETUP).
Root Cause:
Fix Description:
|
|
BugID: 1584561
|
Visual
anomaly / OGL - Hitman - some scenes are washed out with OGL enabled
|
OGL
|
Windows*
XP
|
Intel(R)
945G Express Chipset, Calistoga
|
|
Resolution Description:
Root Cause: The shader cache key was being programmed with the
wrong texture unit data causing an erroneous cache hit. As a result the wrong shader was being used
which produced the "washed out" scenes with the OpenGL
renderer.
Fix Description: TThe fix is to program the shader cache key with
the correct texture unit data. The shader cache correctly registers a
"miss" and the correct shader is generated.
|
|
BugID: 1603409
|
System
Blue Screens while resuming from standby.
|
miniPort
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: Register Save/Restore is not correct, but on
resume the state is corrected by driver mode set. Also FB access is done
before PTEs are enabled, causing invalid access.
Fix Description: Change the sequence of save/restore calls to
softBIOs and KCH for ACPI Power Management calls.
|
|
BugID: 1596947
|
when
overlay is running on single display you can see the clone settings are
visible
|
GDI
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset, Intel(r) 915G Chipset, Intel(R) 945G
Express Chipset
|
|
Resolution Description:
Root Cause: VBT bit
check for block display switch when overlay running was not ported to new
DDC redesign.
Fix Description: Provide the 2 functions. IsCurrentMode()
that checks whether the request is for the current configuration and IsOverlayEnabled() checks whether overlay
is enabled or not if VBT bit is set to Block Display Switch When Overlay is
ON.
|
|
BugID: 1584456
|
When
HDTV connected using RGB Cabel (HDTV 480i59). Corrupted fickling Screen is
displayed when Size and Position sliders moved to Zero in Televsion
Settings page.
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: The position of the window size will go behind the
expected size before reaching the max under percentage
Fix Description: hactive and vactive were wrong and these values
are re-calculated for P and I.
|
|
BugID: 1439345
|
FSDOS
comes in NTSC format when Display is set in PAL
|
softBIOS
|
Windows*
XP
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: Scratch pad
implementation was not done to inform the TV Std to VBIOS.
Fix Description: Scratch pad status flag register implementation is done as part of the #RCR
289449 and Fix is required from VBIOS also.
|
|
BugID: 1579594
|
Port
Issue 1579594 to SourceCUI2
|
CUI2
|
Windows*
XP
|
Intel(r)
915GM, Calistoga
|
|
Resolution Description:
Remove the
workaround SyncOSAndDriver from CUI . Call
SyncOSAndDriverThread when config apply fail for LID Event in case of
Persistence enabled
Root Cause:
Fix Description:
|
|
BugID: 1571077, 1596941
|
It
cannot set from D1(HDTV_480i59) to another mode on
Device Settings property.
|
CUI2
|
Windows*
XP
|
Intel(r)
915G, Intel(r) 945G
|
|
Resolution Description:
Root Cause: This is new
feature for SDVO TV out, Integrated TV Out doesn’t
cover this.
Fix Description: Add flip logic for both primary / secondary
devices as HDTV. Also fixed Hidemodes Unchecked issue due to HDTV work
around, Fixed 15 Sec message box not appearing issue.
|
|
BugID: 1603879
|
We get
BSOD when change from NTSC- PAL-G standard in SDTV
|
AIM
|
Windows*
XP
|
Intel(r)
915G, Intel(r) 945G
|
|
Resolution Description:
Root Cause: The issue was that 720x480 resolution was not
supported for PAL modes.
Fix Description: Removed 720x540 mode and added 720x480 mode as a
common mode for all SDTV formats
|
|
BugID: 1602036
|
[Virtual
Desktop]Overlay does not follow scrolling of a desktop.
|
DD
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset, Calistoga
|
|
Resolution Description:
Root Cause: The function PanOverlays only called
HalUpdateOverlay2 if the ENABLE_SPRITE macro returned TRUE. The ENABLE_SPRITE macro should only be
called if we are in DDC. It was
being called in the single display case when the VBT bit to disable the 2nd
sprite was on. This caused the
ENABLE_SPRITE macro to return false and subsequently not call
HalUpdateOverlay2 leading to the 2nd overlay not to be updated on a screen
movement.
Fix Description: Change the ENABLE_SPRITE macro to only return
FALSE and check the VBT bit if we are in DDC. Also moved the calls to ENABLE_SPRITE to
inside HalUpdateOverlay2 and HalFlipOverlay2 so ENABLE_SPRITE doesn't have
to wrap ever call.
|
|
BugID: 1601041
|
Overlay that
starts outside viewport in panning mode does not show up until you move the
mouse.
|
DD
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset, Calistoga
|
|
Resolution Description:
Root Cause: In HalUpdateOverlay and HalUpdateOverlay2, if
VIDEO_SHOW is requested but the overlay falls outside the viewport, overlay
is hidden.
Fix Description: If the app is showing the sprite but it's out of
the viewport, make sure the OverlayOn SW flag is set.
|
|
BugID: 1592248
|
Intermittent
D3D failures reported when running 3DMark 2005
|
GMM
|
Windows*
XP
|
Intel(R)
945G Express Chipset, Calistoga
|
|
Resolution Description:
Root Cause: The surface Flags passed in 3DMark2005 to D3D has
the Lakeport surface layout (below, right) flag bits 24 set. D3D was
passing this bit back to GMM causing a "right" layout surface to
be mapped as "Below" layout causing double mapping GTT entries.
Fix Description: Mask the bits that should be internal use only in GMM
preventing clients from accessing them. Also in this fix we changed the BPL
alignment in for Lakeport from 4K to 16K per the spec
|
|
Issues Resolved in
4263
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1583007
|
945G-Screen
does not refreshed correctly when enable Shadow Mapping on IShadowMap.
|
OGL
|
Windows*
XP
|
Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: Clears were
not affecting the entire screen. In some situations the clip rectangle
dirty bit was not being set.
Fix Description: Added code
to set the clip rectangle dirty bit.
|
|
BugID:1598378
|
Movie
file is not played correctly on @EIZOKAN v.1.9.
|
DD
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: Incorrect code added that disallows
color-converting blits involving system memory XRGB8888 to ARGB8888.
Fix Description: Re-enable "no alpha" to "has
alpha" system-to-video blits (for XRGB to ARGB).
|
|
BugID:1581098
|
[WinXP-TE] Shape of eraser of
Windows Journal corrupt when using 90 degree or 270 degree with some
settings.
|
Rotation
|
TabletPC,
Windows* XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(r) 855GME Chipset, Intel(R)
945G Express Chipset
|
|
Resolution Description:
Root Cause: Incorrect creation and update of rotated cursor
bitmap.
Fix Description: Create bitmap for Rotated cursor and include code
in update cursor function to handle non-byte aligned widths case.
|
|
BugID:1594241
|
Stretch
mode does not effect between BIOS setting and CUI
|
miniPort
|
Windows*
2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: For SMI1.3,
driver does not update panel fitting status as setup by CMOS settings and
restores fitting status as saved in Registry.
Fix Description: For SMI revision 1.3 and above and the override
flag set on call, enable CMOS settings over the registry values
|
|
BugID:1574532
|
[Win2000
only]CRT does not turn ON, after Suspend LCD/CRT connecting CRT and Resume disconnecting
CRT.
|
miniPort
|
Windows*
2000
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: miniPort Driver does not correctly update the internal
structures power state of the Active device when connect/disconnect CRT per
SMI080Dh, and as a result softBIOS does not receive the correct device UID
for the W2000 re-enumeration of Power events.
Fix Description: Update the miniport internal data structure with
required info before the DPC is queued for the OS enumeration.
|
|
BugID:1592409
|
Overlay
clipped 1 pixel off right and bottom in panning mode
|
GDI
|
Windows*
2000
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: The overlay
pan window is not correctly initialized/updated (one less line
right/bottom).
Fix Description: Update overlay pan window for initialization of
shared info, cursor movement, get viewport.
|
|
BugID:1382048, 1382005
|
Full
sized DOS prompt may corrupted in DDC mode.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: VGA Plane Control Register and DAC are incorrect.
Fix Description: After loading the VGA regs for mode 3, driver
needs to program the mode 3 timings in Full Screen DOS
|
|
BugID:1599092
|
Functional
Failure / CUI2 - The Driver Version is displayed Not Available in the IGT
page. [64-bit][REG]
|
CUI2
|
XP64
|
Intel(r)
915G Chipset
|
|
Resolution Description:
Root Cause: Filesystem redirector call sequence issue.
Fix Description: Disabled the redirector and re-enable it
after the getting the version.
|
|
BugID:1580590
|
On Lid
switch ON/OFF, CRT hotplug ,DFP hotplug does not persist the resolution
when Persistence bit is set in VBT
|
CUI2
|
Windows*
XP
|
Intel(r)
915GM, Intel(r) 855GME Chipset
|
|
Resolution Description:
Root Cause: When driver algorithm is set in VBT for
persistence when Lid switch ON/OFF, DFP hotplug was doing display switch to
correct device,
butt it was not setting the correct resolution.
Fix Description: In CUI and COM, add SetCurrentConfig code for DDC
/MDS modes to set correct resolution in these configurations.
|
|
Issues Resolved in
4258
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID:1598973
|
It will
become BSOD when movie is played on "Virtual Desktop".
|
DD
|
Windows*
XP
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: The ClipRectsOutsideViewport function did not return
FALSE (to hide the overlay) when the overlay height or width was zero after
it was clipped to the viewport. When
function to show overlay was called and the scaling factor was calculated,
driver executed division with 0(height, width).
Fix Description: The ClipRectsOutsideViewport function checks the
overlay width and height after clipping, and if either one is zero, it
should return FALSE to notify the caller that the rectangles are not
visible, and thus not take the code path to hide the overlay.
|
|
BugID:1590205
|
Monitor
signal out of range when loading GMCH driver
|
miniPort,
softBIOS
|
Windows*
XP
|
Intel(r)
915GM Express Chipset, Intel(r) 855GM, Chipset, Intel(r) 865G Chipset, Intel(r)
915G Express Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: For Legacy Monitor, we report the capabilities
based on the static mode table build in the driver/softBIOS, which includes
all modes up to 20x15 and this highest mode is used as Native mode.
Fix Description:
For No EDID monitors, use the mode defined in VBT as
Native mode, and for the VBT as 0, default to 8x6 as the Native mode.
|
|
BugID: 1568211, 1596132
|
Mode is
centered instead of Aspect Scaled (1280x800)
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: For Aspect Scaling enabled, we look for X and Y aspect
ratio within 7 % range to find the nearest mode. This algorithm fails for
12x8 mode and finds the next mode. Also, the
searching did not include OEM mode table.
Fix Description:
Modified the way to find the nearest mode, by including the
OEM mode table and add new function to sort the modes.
|
|
BugID:1575182
|
Hang /
OGL - Homeworld 2 - The blue screen is displayed and the system hangs while
changing the Homeworld 2 game resolution.[REG]
|
OGL
|
Windows*
XP
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: srvDrawable pointer was invalid, when referenced
it caused the blue screen.
Fix Description:
Created function
to search for the srvDrawable object.
If the object is not on the current srvDrawable list than the call
is ignored. This is valid because
the window event to destroy the wndobj structure can come after the
srvDrawable has been deleted.
|
|
BugID:1594718
|
Can not get
scaling status correctly by API ICUIExternal2::GetConfiguation
|
CUI2
|
Windows*
XP
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: The scaling information was hard coded to false in
GetDeviceParameters function.
Fix Description:
Set the scaling
information: for Full Screen, Scaling is enabled, for Centering and MAS,
Scaling is not enabled
|
|
BugID:1597477
|
Functional
Failure / CUI2 - Mosquito - The Restore Default values of Video Overlay do
not change to supposed value after reinstalling the graphics driver with
the modified INF file.
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM Express Chipset, Intel(r) 855GM Chipset, Intel(r) 865G Chipset,
Intel(r) 915G Express Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause:
Fix Description:
When registry
entries present CUI will be using the Driver IOCTL call to get default values,
else it will hard code these values. The default values can't be all 0's.
|
|
Issues Resolved in
4246
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1557011
|
Fix for
MCE HDTV not running smoothly
|
D3D,
GMM, GDI, GDI
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: Driver cannot
map 256MB of aperture, because OS/DX is causing failure, which is apparent
when running HDTV live.
Fix Description:
Break the
aperture in Lockable/unlockable. Additional
enhancement fix from PC14.10 solution is allowing the memory allocation
from "User Lockable" to exceed the 128MB of pre-assigned space.
The driver will allocate from the "Not User Lockable" space but
it will map the block to get "user map address" which can be used
when DDraw wants to lock the surface. This gives more dynamic flexibility
in allocating Lockable space and with this fix the HD content does not run
into memory limitation.
|
|
BugID: 1582027
|
[Clone
Mode]When "Fn+F5" is pushed, a screen flickers violently or nothing
is displayed.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: Flicker is caused because panel fitting is applied
incorrectly by VBIOS, when SoftBIOS does not update the correct mode in the
scratch registers the VBIOS functions use.
Fix Description:
softBIOS update
scratch registers with correct mode in Twin.
|
|
BugID: 1579404, 1579404
|
Fix for
Display switching issues in CUI2 - CT
|
CUI2
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945G Express Chipset
|
|
Resolution Description:
Root Cause: Registry access
from driver (the VideoGUID location) and CUI are out-of-sync in 64bit OS.
Fix Description:
If CUICOM is
running in a WOW64 context, go to the driver for registry accesses.
|
|
Issues Resolved in
4244
|
|
Reference No.
|
Description
|
Affected Component(s)
|
Affected OS(s)
|
Affected Project(s)
|
|
BugID: 1557011
|
Fix for
MCE HDTV not running smoothly
|
D3D,
GMM, GDI, GDI
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945GM Express Chipset
(Lakeport), Calistoga
|
|
Resolution Description:
Root Cause: Driver cannot map 256MB of aperture, because OS/DX
is causing failure, which is apparend when running HDTV live.
Fix Description:
Break the
aperture in Lockable/unlockable. Additional enhancement
fix from PC14.10 solution is allowing the memory allocation from "User
Lockable" to exceed the 128MB of pre-assigned space. The driver will
allocate from the "Not User Lockable" space but it will map the
block to get "user map address" which can be used when DDraw
wants to lock the surface. This gives more dynamic flexibility in
allocating Lockable space and with this fix the HD content does not run
into memory limitation.
|
|
BugID: 1582027
|
[Clone Mode]When "Fn+F5"
is pushed, a screen flickers violently or nothing is displayed.
|
softBIOS
|
Windows*
XP, Windows* 2000
|
Intel(r)
915GM
|
|
Resolution Description:
Root Cause: Flicker is caused because panel fitting is applied
incorectly by VBIOS, when SoftBIOS does not update the correct mode in the
scratch registers the VBIOS functions use.
Fix Description:
softBIOS update
scratch registers with correct mode in Twin.
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BugID: 1579404, 1579404
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Fix for
Display switching issues in CUI2 - CT
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CUI2
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Windows*
XP, Windows* 2000
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Intel(r)
915GM, Chipset, Intel(r) 915G Chipset, Intel(R) 945GM Express Chipset
(Lakeport), Calistoga
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Resolution Description:
Root Cause: Registry access
from driver (the VideoGUID location) and CUI are out-of-sync in 64bit OS.
Fix Description:
If CUICOM is
running in a WOW64 context, go to the driver for registry accesses.
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