This bug now affects Ubuntu 12.04.3. On a freshly installed system virtualbox-guest-x11 cannot be installed:
Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: virtualbox-guest-x11 : Depends: xorg-video-abi-11 Depends: xserver-xorg-core (>= 2:1.10.99.901) E: Unable to correct problems, you have held broken packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1160401 Title: virtualbox-guest-x11 uninstallable on precise with LTS Enablement Stacks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1160401/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs