fglrx slows down Desktop window handling extremely

[wdha]

Binary package hint: xorg

Handling windows (especially resizing and maximizing) became extremely slow (approx. 2 seconds), when I activated the proprietory driver fglrx for my ATI Radeon HD 3650 graphics card. This problem does *not* occur, as long as I use the linux-driver.

BTW: I freshly installed Ubunty Jaunty Jackalope from a live-CD (i386 32 bit).

I have done some google-research on this and thus found out, that I am not alone with this issue. Unfortunately though, I did not find a solution on the internet yet.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: fglrx
Package: xorg 1:7.4~5ubuntu18
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersion: Linux version 2.6.28-11-generic (buildd@palmer) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009
SourcePackage: xorg
Uname: Linux 2.6.28-11-generic i686

[Martin Olsson (mnemo)]

see bug 351186