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[WIN32SS:USER] Fall back to base video (ie VGA) if main display driver failed

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This commit is contained in:
Hervé Poussineau 2023-04-17 08:10:02 +02:00
parent 6904b3f5ac
commit 29d80cb14f
3 changed files with 14 additions and 4 deletions
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4
win32ss/gdi/eng/device.c
View file

@ -179,7 +179,6 @@ EngpUpdateGraphicsDeviceList(VOID)
WCHAR awcBuffer[256];
NTSTATUS Status;
PGRAPHICS_DEVICE pGraphicsDevice;
BOOLEAN bFoundNewDevice = FALSE;
ULONG cbValue;
HKEY hkey;
@ -248,7 +247,6 @@ EngpUpdateGraphicsDeviceList(VOID)
TRACE("gpVgaGraphicsDevice = %p\n", gpVgaGraphicsDevice);
}
}
bFoundNewDevice = TRUE;
/* Set the first one as primary device */
if (!gpPrimaryGraphicsDevice || EngpHasVgaDriver(gpPrimaryGraphicsDevice))
@ -273,7 +271,7 @@ EngpUpdateGraphicsDeviceList(VOID)
gpPrimaryGraphicsDevice->pVgaDevice = gpVgaGraphicsDevice;
}
if (bFoundNewDevice && gbBaseVideo)
if (gbBaseVideo)
{
PGRAPHICS_DEVICE pToDelete;

4
win32ss/gdi/eng/pdevobj.c
View file

@ -794,6 +794,10 @@ PDEVOBJ_lChangeDisplaySettings(
RequestedMode ? RequestedMode->dmDisplayFrequency : 0,
pmdevOld, ppmdevNew);
/* Update device list (some devices may have been added/removed,
or gbBaseVideo variable may have been changed) */
EngpUpdateGraphicsDeviceList();
if (pustrDeviceName)
{
pGraphicsDevice = EngpFindGraphicsDevice(pustrDeviceName, 0);

10
win32ss/user/ntuser/winsta.c
View file

@ -264,8 +264,16 @@ co_IntInitializeDesktopGraphics(VOID)
TEXTMETRICW tmw;
UNICODE_STRING DriverName = RTL_CONSTANT_STRING(L"DISPLAY");
PDESKTOP pdesk;
LONG lRet;
if (PDEVOBJ_lChangeDisplaySettings(NULL, NULL, NULL, &gpmdev, TRUE) != DISP_CHANGE_SUCCESSFUL)
lRet = PDEVOBJ_lChangeDisplaySettings(NULL, NULL, NULL, &gpmdev, TRUE);
if (lRet != DISP_CHANGE_SUCCESSFUL && !gbBaseVideo)
{
ERR("PDEVOBJ_lChangeDisplaySettings() failed. Trying with base video\n");
gbBaseVideo = TRUE;
lRet = PDEVOBJ_lChangeDisplaySettings(NULL, NULL, NULL, &gpmdev, TRUE);
}
if (lRet != DISP_CHANGE_SUCCESSFUL)
{
ERR("PDEVOBJ_lChangeDisplaySettings() failed.\n");
return FALSE;