Description of problem:
In comparison to F11 alt-tabbing (switching) between applications is so slow that I'm not using it anymore since it is unbearable. It seems that mainly the "initialization" of the alt-tab process is slow, because once the window showing all open applications comes up (which is the slow part) things are fine.
I use focus-follows-mouse without bringing the focused window to the foreground.
Version-Release number of selected component (if applicable):
Just try alt-tabbing.
It's too slow.
Needs to be as fast as with F11.
Do you have the metacity compositor turned on by any chance? (If you don't know what that is, then the answer is no; you'd have to have changed a GConf key to turn it on.)
Yes, it's enabled. I know gconf.
Almost certainly an X driver bug then. What video card do you have so I can reassign this to the appropriate place?
Ok, I have an ATI Mobility Radeon HD 3650. lspci calls it RV635.
I use mesa-dri-drivers-experimental, maybe that's why.
Still present in F13, not driver specific.
Upstream is http://bugzilla.gnome.org/show_bug.cgi?id=504729
I posted a simple work-around patch there. May I propose for F13?
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Still present in F14.
Ping: I posted a patch in the upstream bug (http://bugzilla.gnome.org/show_bug.cgi?id=504729)
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I don't have permission to reopen but this is still present in F14, as per my comment #7 (posted a month before you closed this).
As I've mentioned several times, I posted a patch in the upstream bug.
The metacity compositor is unsupportable and we're not going to put any effort into it other than packaging whatever is upstream.