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Change needed to resume from S3 suspend on Rage XL chipset in Ultra 20.
diff --git a/src/aticonsole.c b/src/aticonsole.c
index 50cc6e1..947a122 100644
@@ -515,6 +515,16 @@ ATIEnterGraphics
ATIPtr pATI
)
{
+ CARD32 PciReg;
+ pciVideoPtr pVideo = pATI->PCIInfo;
+
+/*
+* Possibly fix block I/O indicator in PCI configuration space.
+*/
+ PCI_READ_LONG(pVideo, &PciReg, PCI_REG_USERCONFIG);
+ if (!(PciReg & 0x00000004U))
+ PCI_WRITE_LONG(pVideo, (PciReg | 0x00000004U), PCI_REG_USERCONFIG);
+
/* Map apertures */
if (!ATIMapApertures(pScreenInfo->scrnIndex, pATI))
return FALSE;