[Bug 32316] Severe glitches with KMS + external monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32316

--- Comment #14 from Alex Deucher <agd5f at yahoo.com> 2010-12-20 07:54:24 PST ---
(In reply to comment #13)
> 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?
> 

The combination of the large screens and the acceleration activity patterns
seem to indicate it's more than the MC can handle at one time.

> 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.

Can you attach your xorg log with that option set?

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