Created attachment 29253 [details] example of the corruption in PCI mode See the attached images to see how they look like. Switching off AccelDFS makes the image to be correct but then the system is not usable (too slow). The corruptions happen not only in AGPMode 8 but also in PCI mode. Actually, it is worse in PCI mode. The HW is working without any problems (graphics corruptions) in windows (with the catalyst driver in AGPMode 8 even with FastWrites on - that is provided that the catalyst control center is not lying). If this is a HW problem (AgpBridge - VGA incompatibility) then windows somehow manages to do GUI quickly even without AccelDFS. The attached images show errors in Thunderbird toolbar icons. Thunderbird is the only application where I noticed these problems. It also makes system terribly slow when AccelDFS is off. I used today's (2009-09-05) git versions of radeon, mesa, libdrm, and agd5f's r6xx 3D drm.
Created attachment 29254 [details] example of the corruption in AGP mode
Created attachment 29255 [details] xorg.conf
Created attachment 29256 [details] Xorg.0.log
Ach, one more note. When I used fglrx, Thunderbird was quick and without any image corruption which would be another (weak) indication that it is probably a SW bug. Thought fglrx problem was that it crashed my system when I launched a 3D application :)
*** This bug has been marked as a duplicate of bug 18397 ***
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