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Use 16bpp when running in virt and on XenSource gfx

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Due to graphics corruption default to 16bpp in virt instead of 24 (Fedora).
Do the same on XenSource gfx, which suffers from the same issue.

Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Frederic Crozat
2016-04-26 13:57:52 +02:00
committed by Adam Jackson
parent 23da607336
commit 82db44fe8a
1 changed files with 14 additions and 1 deletions
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15
src/alp_driver.c
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@@ -466,6 +466,7 @@ AlpPreInit(ScrnInfoPtr pScrn, int flags)
vgaHWPtr hwp;
MessageType from, from1;
int i;
int defaultdepth;
int depth_flags;
ClockRangePtr clockRanges;
char *s;
@@ -551,11 +552,23 @@ AlpPreInit(ScrnInfoPtr pScrn, int flags)
depth_flags |= Support32bppFb |
SupportConvert32to24 |
PreferConvert32to24;
/* use 16bpp in virt and on XenSource */
#ifndef PCI_CHIP_QEMU
#define PCI_CHIP_QEMU 0x1af4
#endif
#define PCI_CHIP_XENSOURCE 0x5853
if (((pCir->PciInfo->subvendor_id & 0xffff) == PCI_CHIP_QEMU) ||
((pCir->PciInfo->subvendor_id & 0xffff) == PCI_CHIP_XENSOURCE))
defaultdepth = 16;
else
defaultdepth = 24;
/*
* The first thing we should figure out is the depth, bpp, etc.
* We support both 24bpp and 32bpp layouts, so indicate that.
*/
if (!xf86SetDepthBpp(pScrn, 0, 0, 24, depth_flags)) {
if (!xf86SetDepthBpp(pScrn, 0, 0, defaultdepth, depth_flags)) {
return FALSE;
} else {
/* Check that the returned depth is one we support */