So it's the actual presence of METACITY_DEBUG that seems to be causing your problem. I suspect, though, that your computer was slowed down enough by METACITY_DEBUG that the problem didn't show up.
Let's hope the latest log you posted has enough information to solve the problem... -- disabling compositing-manager freezers the computer https://bugs.launchpad.net/bugs/232128 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to metacity in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs