it seems to be related to compositing. I have installed LXDE and I'm already working all morning without any problems opening and closing programs, browsing the web etc. In 'plain' Ubuntu I would already have had artefacts causing me to restart X. There a lot of problems with Nvidia and Nouveau run systems apparantly. It seems not to be related to the drivers though, but a problem with compositing.
It all started for me in 12.04: this was totally unusable for me: complete freeze every 10 minutes or even less. 12.10 runs into problems as well. Nouveau shows artefacts, but I can at least restart X by myself. With Nvidia drivers installed (all versions tried out, including those of x-edgers and x-swat) my system becomes suddenly less responsive, fans sound like an aircraft going up in the sky and then X crashes and restarts. I truly hope that 13.04 will not have this problems anymore. I will try a beta as soon as I can. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1113454 Title: Artefacts with nouveau driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1113454/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs