[Bug 35697] System locks up when watching fullscreen flash video

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35697

--- Comment #10 from Nikos Chantziaras <realnc at gmail.com> 2011-03-27 18:48:02 PDT ---
(In reply to comment #8)
> Pure guesswork, but maybe worth trying:
> 
> Can you check in your ~/.kde/share/config/kwinrc if setting the option
> UnredirectFullscreen to false...
> 
> UnredirectFullscreen=false
> 
> ...and restarting kwin makes any difference?

Yes. This also fixes the issue. Another "issue" appears though when doing this:
fullscreen animations are not smooth anymore; there's frameskipping at every
exact interval (about one second.) This is not video related though. With
compositing active, all animations, including glxgears running in a very small
window, exhibit this frameskipping.  The only way to get really even and smooth
animations is to run in fullscreen (which suspends compositing by default on
KDE.)

So I guess the issue is triggered when KDE unredirects the rendering. But it's
strange that it happens only with Flash and not other applications (KDE
unredirects them too).


(In reply to comment #9)
> Might be related to bug 35452.  You might also try the xserver patch on that
> bug.

Just tried the patch. Doesn't help.

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