Izidor, It appears the combination of a large desktop (multiple monitors), the nvidia driver, and Unity is the problem. Obviously we should only expect Nvidia or Unity to change.
A relevant fix has been released in Nux 3.10 recently. Please make sure your libnux packages are at 3.10 or later. For Nvidia, they claim to have made major leaps in Unity performance with their v310 beta driver, so please try that too: http://www.nvidia.com/object/linux-display-amd64-310.14-driver.html http://www.nvidia.com/object/linux-display-ia32-310.14-driver.html Finally, please provide details of your installation by running this command: apport-collect 1071284 And in future, please report bugs using this command: ubuntu-bug unity ** Also affects: nux Importance: Undecided Status: New ** Changed in: nux Status: New => Incomplete ** Also affects: nvidia-graphics-drivers (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1071284 Title: Compiz burns at least 8% CPU constantly Status in Nux: Incomplete Status in Unity: Incomplete Status in “nvidia-graphics-drivers” package in Ubuntu: Incomplete Bug description: I installed Ubuntu 12.10. Since then compiz burns at least 8% of CPU constantly. It makes fans go nonstop and decreases usability of Unity because of the noise. Sometimes I accidentally trigger another/similar bug and compiz uses at least 25% of CPU making the desktop laggy -- processing a keyboard event takes too long. I can reproduce this problem either using nouveau or nvidia drivers. This problem doesn't occur when I use GNOME Shell instead of Unity. What information do you need to find the root of the problem? To manage notifications about this bug go to: https://bugs.launchpad.net/nux/+bug/1071284/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
