KDE4 composite kwin + Intel GPU

[Jan Krajicek <j.krajicek@atlas.cz>]

Hi,

Is there someone here using KDE 4 with composite effects on an Intel GPU?
If so, which AccelMethod (configured in xorg.conf in the "Device" section) 
are you using, "EXA" (the default) or "XAA"?

I tried the KDE 4 backported packages for Lenny and I'm having some issues 
with composite effects on this laptop (integrated Intel GPU), the default 
EXA AccelMethod has terrible performance (even with tweaks 
like "MigrationHeuristic" "greedy" that were suggested somewhere), and 
with XAA (which is obsolete) I can't play any videos with composite 
effects on, as both xine and mplayer crash with BadAlloc errors.

I found some seemingly relevant bugs on various trackers, it's hard to say 
if the problem is in KDE, X, or the intel driver (there are probably 
multiple issues), I'm wondering if someone actually has it working.