Could you guys try the following (untested) patch which should summarize
what has been said here and in the upstream bug?
Brice
Index: xserver-xorg-video-ati/src/atimach64xv.c
===================================================================
--- xserver-xorg-video-ati.orig/src/atimach64xv.c 2007-07-09 11:59:37.000000000 +0200
+++ xserver-xorg-video-ati/src/atimach64xv.c 2007-07-09 12:01:45.000000000 +0200
@@ -979,6 +979,9 @@
if (pATI->ActiveSurface)
return Success;
+ if (DstH < 16)
+ return Success;
+
if (!ATIMach64ClipVideo(pScreenInfo, pATI, ImageID,
SrcX, SrcY, SrcW, SrcH,
DstX, DstY, &DstW, &DstH,
