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[PATCH] Support for igfx on Celeron(R) 2957U (thanks Lorenzo Bivens)

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> After some tinkering I managed to get igfx working on this device.
> hw cursor works.
> The only caveat is that I can only get video over hdmi...
> will revisit displayport later
This commit is contained in:
cinap_lenrek 2021-07-31 12:05:29 +00:00
parent 84b77568cd
commit edfc72b500
3 changed files with 5 additions and 0 deletions
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2
lib/vgadb
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@ -437,6 +437,8 @@ ctlr
vid=0x8086 did=0x2a42 # Intel 4 Series Mobile
vid=0x8086 did=0x0a16 # Intel 4th Gen Core (HD 4400)
vid=0x8086 did=0x0412 # Intel 4th Gen Core (HD 4600)
vid=0x8086 did=0x3185 # Intel 9.5th Gen Core (UHD 600)
vid=0x8086 did=0x0a06
link=vga
hwgc=igfxhwgc
ctlr=igfx linear=1

1
sys/src/9/pc/vgaigfx.c
View file

@ -149,6 +149,7 @@ igfxcurregs(VGAscr* scr, int pipe)
switch(scr->pci->did){
case 0x0412: /* Haswell HD Graphics 4600 */
case 0x0a16: /* Haswell HD Graphics 4400 */
case 0x0a06:
if(pipe > 3)
return nil;
if(pipe == 3)

2
sys/src/cmd/aux/vga/igfx.c
View file

@ -366,6 +366,8 @@ devtype(Igfx *igfx)
case 0x0a16: /* HD 4400 - 4th Gen Core (ULT) */
igfx->isult = 1;
/* wet floor */
case 0x0a06:
case 0x3185: /* UHD 600 - 9.5 Gen Core */
case 0x0412: /* HD 4600 - 4th Gen Core */
return TypeHSW;
case 0x0166: /* 3rd Gen Core - ThinkPad X230 */