After install mesa from proposed, the problem was gone. Verification done.
** Tags removed: amd64 apport-crash verification-needed ** Tags added: verification-done -- 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/968284 Title: gnome-session-check-accelerated-helper crashed with SIGSEGV in QueryVersion() Status in “mesa” package in Ubuntu: Fix Released Status in “mesa” source package in Precise: Fix Committed Status in “mesa” source package in Quantal: Fix Released Bug description: after login, update from 11.10 #0 QueryVersion (minor=0x62e770, major=0x62e76c, dpy=0x623010, opcode=<optimized out>) at glxext.c:296 c = 0x624410 reply = 0x0 ProblemType: Crash DistroRelease: Ubuntu 12.04 Package: gnome-session-bin 3.2.1-0ubuntu6 ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12 Uname: Linux 3.2.0-20-generic x86_64 ApportVersion: 1.95-0ubuntu1 Architecture: amd64 Date: Thu Mar 29 16:27:01 2012 ExecutablePath: /usr/lib/gnome-session/gnome-session-check-accelerated-helper InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) ProcCmdline: /usr/lib/gnome-session/gnome-session-check-accelerated-helper ProcEnviron: LANG=de_AT.UTF-8 SHELL=/bin/false PATH=(custom, no user) SegvReason: writing NULL VMA Signal: 11 SourcePackage: gnome-session Title: gnome-session-check-accelerated-helper crashed with SIGSEGV in glXChooseVisual() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/968284/+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

