After reinstalling most of the system, I tried logging in in GNOME safe mode, and metacity was running correctly. Big clue that it was something to do with the GNOME session, and I remembered I'd stored various startup applications.
So if starting metacity on the command line as above and then going to System > Preferences > Startup Applications > Options tab > click on "Remember Currently-running Application" and tick "automatically remember" seemed to work. So this isn't apparently related to the compiz-gnome package, but to the upgrade process and its effect on the saved session. Might be the same as bug 563171 and/or bug 560065 which don't mention compiz-gnome. -- [lucid] compiz-gnome broken because of metacity update https://bugs.launchpad.net/bugs/558998 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
