ubuntu-x-swat team mailing list archive

[Tormod Volden <bugpost.tormod@xxxxxxxxx>]

Even without Visual Effects, the radeon driver uses acceleration on the
card (EXA, composite etc), so some corruption can be seen. This
acceleration is not used if fglrx is blocking, or if you are using the
vesa driver ("failsafe").

With compiz it will use hw acceleration for the whole screen, that's why
you see it all over.

Did you have any corruption with an older version using fglrx? If not,
there is probably a bug in the ati radeon driver. If you did not see
corruption in older releases with ati radeon, it could be because it did
not use much hw acceleration features at the time.

-- 
[R350] screen corruption on 9800SE
https://bugs.launchpad.net/bugs/565883
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