you're on an ancient kernel (3.2.0-37.58), does it happen with the trusty kernel (3.13)?
** Changed in: mesa (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1300168 Title: unity-control-center assert failure: unity-control-center: ../../../../src/mesa/main/context.c:1549: _mesa_make_current: Assertion `newCtx->Version > 0' failed. Status in “mesa” package in Ubuntu: Incomplete Bug description: Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 unity-control-center: Installed: 14.04.3+14.04.20140328-0ubuntu1 Candidate: 14.04.3+14.04.20140328-0ubuntu1 Version table: *** 14.04.3+14.04.20140328-0ubuntu1 0 500 http://archive.ubuntu.com/ubuntu/ trusty/main i386 Packages 100 /var/lib/dpkg/status clicked on the controm center icon to find some properties it died without opening ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: unity-control-center 14.04.3+14.04.20140328-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-37.58-generic-pae 3.2.35 Uname: Linux 3.2.0-37-generic-pae i686 NonfreeKernelModules: symap_custom_dkms_i686 ApportVersion: 2.13.3-0ubuntu1 Architecture: i386 AssertionMessage: unity-control-center: ../../../../src/mesa/main/context.c:1549: _mesa_make_current: Assertion `newCtx->Version > 0' failed. CurrentDesktop: Unity Date: Mon Mar 31 13:17:50 2014 ExecutablePath: /usr/bin/unity-control-center InstallationDate: Installed on 2012-08-14 (593 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) ProcCmdline: /usr/bin/unity-control-center --overview Signal: 6 SourcePackage: unity-control-center StacktraceTop: __assert_fail_base (fmt=0xb6bbfb94 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0xa31f1909 "newCtx->Version > 0", file=file@entry=0xa31f1280 "../../../../src/mesa/main/context.c", line=line@entry=1549, function=function@entry=0xa31f198a "_mesa_make_current") at assert.c:92 __GI___assert_fail (assertion=0xa31f1909 "newCtx->Version > 0", file=0xa31f1280 "../../../../src/mesa/main/context.c", line=1549, function=0xa31f198a "_mesa_make_current") at assert.c:101 ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so ?? () from /usr/lib/i386-linux-gnu/dri/i965_dri.so Title: unity-control-center assert failure: unity-control-center: ../../../../src/mesa/main/context.c:1549: _mesa_make_current: Assertion `newCtx->Version > 0' failed. UpgradeStatus: Upgraded to trusty on 2014-03-18 (13 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo usr_lib_unity-control-center: activity-log-manager 0.9.7-0ubuntu12 deja-dup 30.0-0ubuntu2 gnome-control-center 1:3.6.3-0ubuntu54 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1300168/+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