you seem to have the lts-vivid stack. so remove everything (virtualbox-* related) and install virtualbox-guest-dkms-lts-vivid.
I uploaded a new version on my ppa, will be available in an hour or two virtualbox-lts-vivid - 4.3.36-dfsg-1+deb8u1ubuntu1.14.04.1~14.04.4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1424769 Title: virtualbox-guest-x11 uninstallable with mesa-lts-utopic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1424769/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
