I have the same issue but I get mine when I try to install glx- alternative-nvidia and trying to install the dependencies fails.
user@hostname:~$ sudo apt-get install glx-alternative-nvidia Reading package lists... Done Building dependency tree Reading state information... Done 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: glx-alternative-nvidia : Depends: glx-diversions (= 0.2.2) Depends: glx-alternative-mesa 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/1099968 Title: glx-alternative-mesa and glx-diversions cannot be installed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glx-alternatives/+bug/1099968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs