@benpicco, To see if your problem is the problem described in this bug, try turning off the X to GL sync.
If you haven't already, install compizconfig-settings-manager. After that, start ccsm and then go to the OpenGL tab. Uncheck "X11 Sync objects". If this makes your issue go away, then you are dealing with this particular bug. That said, looking at your log snippet, I'm thinking this is an issue either in the NVRAM of your card perhaps exposed by the driver or in the driver itself. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1424013 Title: Compiz high CPU and UI freeze on NVIDIA after fix for #269904 in trusty-updates Status in Compiz: Fix Committed Status in Compiz 0.9.11 series: In Progress Status in compiz package in Ubuntu: Fix Released Status in compiz source package in Trusty: Fix Committed Bug description: [ Impact ] Immediately after the fix for #269904 landed in trusty-updates via compiz 1:0.9.11.3+14.04.20150122-0ubuntu1, my 14.04 machine with an NVIDIA card and using the nvidia-304 driver became unusable -- symtoms include compiz process high CPU (100%), UI freeze right after logging in (machine still up, reachable via SSH from the network), and a flood of these messages on the system log. [ Test Case ] Requires a GeForce 6150SE or similar integrated GPU from nVidia. Problem manifests immediately on login. [ Regression Potential ] The fix involves a specific hardware blacklist. Anticipated regressions include fixed support for the specific hard in future nVidia driver releases and potentially additional unidentified hardware affected by this bug needing to be added to the blacklist. Note that there is a manual workaround to the problem consisting of disabling the X11 Sync feature through CCSM. [ Other Info ] This fix was cherry-picked from the Ubuntu "Vivid Vervet" development release where it has been in regular use for some weeks. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1424013/+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
