From Aaron Plattner in X.Org git:

G80 bug #12637: Unwedge the hardware if the BIOS left it stuck.
Fixes Thinkpad R61 display lockup for niklas@ and espie@.
This commit is contained in:
matthieu 2007-10-15 20:13:05 +00:00
parent 0149fccb81
commit dbd00c4776

View File

@ -250,6 +250,7 @@ Bool
G80DispInit(ScrnInfoPtr pScrn)
{
G80Ptr pNv = G80PTR(pScrn);
CARD32 val;
if(pNv->reg[0x00610024/4] & 0x100) {
pNv->reg[0x00610024/4] = 0x100;
@ -258,7 +259,15 @@ G80DispInit(ScrnInfoPtr pScrn)
}
pNv->reg[0x00610200/4] = 0x2b00;
while((pNv->reg[0x00610200/4] & 0x1e0000) != 0);
do {
val = pNv->reg[0x00610200/4];
if ((val & 0x9f0000) == 0x20000)
pNv->reg[0x00610200/4] = val | 0x800000;
if ((val & 0x3f0000) == 0x30000)
pNv->reg[0x00610200/4] = val | 0x200000;
} while ((val & 0x1e0000) != 0);
pNv->reg[0x00610300/4] = 1;
pNv->reg[0x00610200/4] = 0x1000b03;
while(!(pNv->reg[0x00610200/4] & 0x40000000));