[Bug 25129] ATI x1250 - Slow fullscreen video when compiz activated

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=25129





--- Comment #2 from Christophe Bricheux <lefteyexl at gmail.com>  2009-11-16 10:58:00 PST ---
I can confirm that Flash videos are choppy, no matter Compiz is on or not, but
only when they are in full-screen mode in my case.

Well, I have made several reinstalls since last week, and the problem won't
disappear: when Compiz is activated, fullscreen videos are really slow in VLC,
SMPlayer, etc. Compix effects are really slow in larger windows.

However I noticed the following thing: if I set the procesor frequency to max
through the Gnome req scaling monitor (1800Mhz) while Compiz is on, videos and
effects are a lot faster (except for Flash vids). Don't know if this means
anything, but it seems to me that the current driver is not really optimized to
use composite with my X1250 card... and that it needs the processor to do the
calculating job. Correct me if I'm wrong :o)

I have the current values in glxgears:

>>> with procesor at 800Mhz

cristobalin at chris-karmic:~$ glxgears
1518 frames in 5.0 seconds = 303.546 FPS
1367 frames in 5.0 seconds = 273.295 FPS
1455 frames in 5.0 seconds = 290.883 FPS
1458 frames in 5.0 seconds = 291.383 FPS
1427 frames in 5.0 seconds = 285.288 FPS

>>> with procesor at 1.80Ghz

cristobalin at chris-karmic:~$ glxgears
2958 frames in 5.0 seconds = 591.518 FPS
2919 frames in 5.0 seconds = 583.795 FPS
2847 frames in 5.0 seconds = 569.261 FPS
2940 frames in 5.0 seconds = 587.825 FPS

One more remark: I have activated the xorg-edgers repositories, so all of the
values come from tests made with the newest releases.
If it helps, I have attached my Xorg.0.log. i have not attached my xorg.conf
file because I have not tweaked it.

Thanks!

Chris


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