[Bug 32316] Severe glitches with KMS + external monitor

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 20 05:18:24 PST 2010


--- Comment #13 from tim.holy at gmail.com 2010-12-20 05:18:25 PST ---
(In reply to comment #12)
> The memory usage patterns are different and likely higher under KMS.  Do you
> still have the problems with KMS if you disable accel?
> Option "NoAccel" "True"
> in the device section of your xorg.conf

Setting "NoAccel" to "True" fixed the problem. (I should note that I also had
"ColorTiling" still set to "False" left over from a previous test.) Many
thanks! Obviously it would be nice to have acceleration, but this is certainly
a major improvement.

So does this establish that it's really a hardware limitation? Or is it
possible that there is some bug in acceleration with my hardware configuration?

Independently, I tried the "EXAPixmaps" but this caused X to fail to start. I
noticed that the template xorg.conf file created by X -configure did not even
list this as an option.

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