[Bug 1424] Font rendering glitches with Render Acceleration enabled on radeon

Wed Jan 26 20:55:52 PST 2005

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https://bugs.freedesktop.org/show_bug.cgi?id=1424          

------- Additional Comments From michel@daenzer.net  2005-01-26 20:55 -------
(In reply to comment #33)
> (In reply to comment #25)
> 
> Also, the slowdown with xcompmgr is gone in 6.8.3-rc3 (which has Roland's
> patch). I actually think it was something I did, or something with my system.

In my experience, compositing sometimes suddenly becomes much slower and never
seems to recover. Could be some video memory management issue or something. Or
maybe the process scheduling, as you suggested.

> Anyways, I've tried it with HEAD, and I didn't notice any difference with
> performance or visually. 

Bummer. The change certainly had a significant effect on x11perf -aa{10,24}text
numbers here, and it also seemed to improve compositing, but maybe that's just me.

> Is there anything special I have to do to enable the new DRI texture uploads?
> glxinfo shows "direct rendering: Yes". 

In that case, the new code is active.

> 'glxgears' still gives me the same framerate, if that is an indicator.

No, the change only affects Render acceleration, not OpenGL.          

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