Christopher, thanks removing all nvidia related packages that had no other dependencies attached helped. So also in my case the Virtual Box package update seemed to have caused the damage. Though I didn't need to remove the Virtual Box package.
Thanks again for finding out, Dietmar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136793 Title: GLX extension not found after update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1136793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
