Please attach your /var/log/Xorg.0.log and /etc/X11/xorg.conf. I suspect that after the update you're not using the fglrx driver in the Xserver for some reason. But the fglrx libGL is active at the same time. The fglrx libGL is incompatible with the open-source X drivers.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/747576 Title: kwin_opengl_test crashed with SIGSEGV in XF86DRIQueryVersion() -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
