*** This bug is a duplicate of bug 58424 ***
Thanks for your bugreport. It looks like the mesa packages from: 'deb http://www.beerorkid.com/compiz/ dapper main' break the upgrade calculation. It should be enough to remove libgl1 -mesa-dri to fix that Cheers, Michael ** Changed in: update-manager (Ubuntu) Importance: Untriaged => Low Status: Needs Info => Confirmed ** This bug has been marked a duplicate of bug 58424 Can't calculate the upgrade with unofficial mesa/compiz packages -- cannot upgrade https://launchpad.net/bugs/62119 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs