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Set video resolution to highest when PcdVideoHorizontalResolution or PcdVideoVerticalResolution are set to 0x0. 

Signed-off-by: li-elvin
Reviewed-by: niruiyu, hhtian


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12596 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
li-elvin 2011-10-28 08:25:18 +00:00
parent b9b5e3078d
commit 675253b4a4
2 changed files with 27 additions and 0 deletions
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25
IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/BiosVideo.c
View File

@ -1225,12 +1225,18 @@ BiosVideoCheckForVbe (
UINT8 *EdidOverrideDataBlock;
UINTN EdidActiveDataSize;
UINT8 *EdidActiveDataBlock;
UINT32 HighestHorizontalResolution;
UINT32 HighestVerticalResolution;
UINTN HighestResolutionMode;
EdidFound = TRUE;
EdidOverrideFound = FALSE;
EdidOverrideDataBlock = NULL;
EdidActiveDataSize = 0;
EdidActiveDataBlock = NULL;
HighestHorizontalResolution = 0;
HighestVerticalResolution = 0;
HighestResolutionMode = 0;
//
// Allocate buffer under 1MB for VBE data structures
@ -1526,6 +1532,16 @@ BiosVideoCheckForVbe (
continue;
}
//
// Record the highest resolution mode to set later
//
if ((BiosVideoPrivate->VbeModeInformationBlock->XResolution >= HighestHorizontalResolution) &&
(BiosVideoPrivate->VbeModeInformationBlock->YResolution >= HighestVerticalResolution)) {
HighestHorizontalResolution = BiosVideoPrivate->VbeModeInformationBlock->XResolution;
HighestVerticalResolution = BiosVideoPrivate->VbeModeInformationBlock->YResolution;
HighestResolutionMode = ModeNumber;
}
//
// Add mode to the list of available modes
//
@ -1620,6 +1636,15 @@ BiosVideoCheckForVbe (
//
// Find the best mode to initialize
//
if ((PcdGet32 (PcdVideoHorizontalResolution) == 0x0) || (PcdGet32 (PcdVideoVerticalResolution) == 0x0)) {
DEBUG_CODE (
BIOS_VIDEO_MODE_DATA *ModeData;
ModeData = &BiosVideoPrivate->ModeData[HighestResolutionMode];
DEBUG ((EFI_D_INFO, "BiosVideo set highest resolution %d x %d\n",
ModeData->HorizontalResolution, ModeData->VerticalResolution));
);
PreferMode = HighestResolutionMode;
}
Status = BiosVideoGraphicsOutputSetMode (&BiosVideoPrivate->GraphicsOutput, (UINT32) PreferMode);
if (EFI_ERROR (Status)) {
for (PreferMode = 0; PreferMode < ModeNumber; PreferMode ++) {

2
IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/VideoDxe.inf
View File

@ -78,3 +78,5 @@
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdBiosVideoSetTextVgaModeEnable
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdBiosVideoCheckVbeEnable
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdBiosVideoCheckVgaEnable
gEfiMdeModulePkgTokenSpaceGuid.PcdVideoHorizontalResolution
gEfiMdeModulePkgTokenSpaceGuid.PcdVideoVerticalResolution