Hmm... it looks like I had a phantom update-alternatives in /usr/local/bin, which superceded the official one. Not sure where it came from, but removing it fixed the problem. Thanks for your attention on this (as it turns out) non-bug.
-- package totem-xine 2.22.1-0ubuntu2 failed to install/upgrade: subprocess post-installation script returned error exit status 2 https://bugs.launchpad.net/bugs/216443 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs