I downgraded libgl1-mesa-dev libgl1-mesa-glx libgl1-mesa-glx:i386 libglapi-mesa libglapi-mesa:i386 libosmesa6 libosmesa6:i386 mesa-common-dev to version 17.0.7-0ubuntu0.16.04.2 and this solved the problem.
I went the hard route and downloaded the deb-files manually from "built files" https://launchpad.net/ubuntu/+source/mesa/17.0.7-0ubuntu0.16.04.2/+build/13231714 and installed with # sudo dpkg -i *.deb manually watching out for dependencies. Looks like a mesa regression rather than unity bug, though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1741447 Title: Unity / Compiz in a crash loop after login, after updates 4/1 To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1741447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs