I can confirm this bug. The system slows down greatly and becomes unusable when I run compiz. I switched back to Metacity for the moment as I don't have time to trace this bug.
Here are some logs: Acer Extensa 5620 Laptop Intel Core2 Duo Processor T5450 1.66 GHz Mobile Intel GMA X3100 (uses the i945 driver) [EMAIL PROTECTED]:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=8.04 DISTRIB_CODENAME=hardy DISTRIB_DESCRIPTION="Ubuntu hardy (development branch)" Using the latest updates as of today. [EMAIL PROTECTED]:~$ cat /proc/version Linux version 2.6.24-11-generic ([EMAIL PROTECTED]) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu1)) #1 SMP Fri Feb 29 21:26:31 UTC 2008 Also, I have noticed that there are seemingly two packages with i945 driver installed: [EMAIL PROTECTED]:~$ dpkg -s xserver-xorg-video-intel Package: xserver-xorg-video-intel Architecture: amd64 Version: 2:2.2.1-1ubuntu2 [EMAIL PROTECTED]:~$ dpkg -s xserver-xorg-video-i810 Package: xserver-xorg-video-i810 Architecture: amd64 Version: 2:1.7.4-0ubuntu7 [EMAIL PROTECTED]:~$ dpkg -s compiz Package: compiz Architecture: all Version: 1:0.7.0+git20080227-0ubuntu2 [EMAIL PROTECTED]:~$ dpkg -s compiz-core Architecture: amd64 Version: 1:0.7.0+git20080227-0ubuntu2 -- Bad performance with compiz https://bugs.launchpad.net/bugs/194338 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs