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Change needed to resume from S3 suspend on Rage XL chipset in Ultra 20.
https://bugs.freedesktop.org/show_bug.cgi?id=6829

diff --git a/src/aticonsole.c b/src/aticonsole.c
index 50cc6e1..947a122 100644
--- a/src/aticonsole.c
+++ b/src/aticonsole.c
@@ -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;