Bug#451571: xserver-xorg-video-intel: uses lots of CPU with Compiz and (new default) EXA

[Julien Valroff <julien@kirya.net>]

Le samedi 13 juin 2009 à 12:08 +0200, Brice Goglin a écrit :
> On Sat, Nov 17, 2007 at 02:55:32AM +0000, brian m. carlson wrote:
> > Package: xserver-xorg-video-intel
> > Version: 2:2.2.0-1
> > Severity: important
> >
> > The intel video driver now uses EXA by default.  When using Compiz as my 
> > window manager, Xorg consistently uses >50% of the CPU when scrolling in 
> > Firefox or doing other simple (and formerly efficient) operations.
> >
> > This did not occur with XAA, because I used XAANoOffscreenPixmaps, which  
> > is recommended with Compiz.  Now, using EXA, offscreen memory is  
> > allocated, which I believe to be the cause of the CPU waste.
> 
> Does this still happen with latest intel driver from Lenny?
> And from unstable or experimental where UXA replaces/improves EXA?

Everything is working now, using driver from unstable, with or without
UXA.

Cheers,
Julien