[Bug 105217] Blank screen with only mouse pointer after 7.10 radeon driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105217

--- Comment #9 from Mario Kleiner <mario.kleiner at tuebingen.mpg.de> ---
A r300, so accordign to your log, the driver uses DRI2 + EXA.

I think this would hit the bug which iirc was introduced in 7.10.0 which causes
pageflipping failure under DRI2, which was fixed in master by Michel's commit
733f606dd6ca8350 ("Always use screen depth/bpp for KMS framebuffers").

Might explain what you see.

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