I confirm. 100% CPU by Xorg, sometimes segfaults (it restarts Xorg). I'm using binary nvidia drivers, not nouveau
I did a previous-LTS to current-LTS upgrade. Prior to that it worked. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/997075 Title: XOrg uses 100% CPU after upgrade to 12.04 and freezes computer Status in “xserver-xorg-video-nouveau” package in Ubuntu: Confirmed Bug description: You can read a little bit about my quest to get my computer back to normal on here http://ubuntuforums.org/showthread.php?p=11920008#post11920008 After upgrade from 11.10 to 12.04 Unity 3D was unusable and slow. I managed to get it fixed by deleting ~/.config however after a couple of minutes my computer freezes and the only way to get it back is using the reset button. I can SSH from another computer and see Xorg is taking 100% of the CPU. It seems Gnome Shell is not affected. The problem only happens in Unity 3D. $cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS" $sudo lshw -c video *-display description: VGA compatible controller product: G80 [GeForce 8800 GTS] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a2 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nvidia latency=0 resources: irq:16 memory:fd000000-fdffffff memory:d0000000-dfffffff memory:fa000000-fbffffff ioport:cc00(size=128) memory:fe8e0000-fe8fffff $dpkg -l |grep nvidia ii nvidia-common 1:0.2.44 Find obsolete NVIDIA drivers ii nvidia-current 295.40-0ubuntu1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-updates 295.49-0ubuntu0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver ii nvidia-settings-updates 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver $ dpkg -l |grep Xorg ii nvidia-current 295.40-0ubuntu1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-updates 295.49-0ubuntu0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii xserver-xorg-core 2:1.11.4-0ubuntu10.2 Xorg X server - core server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/997075/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

