I have fixed the problem on my system. Here's what I think caused it: I had upgraded from Hardy using update-manager -e (which, maybe, I should have mentioned in the original bug report) and apparently was left with some cruft that caused Compiz to misbehave. After completely removing and then reinstalling all packages related to Compiz, it is gone.
Because Compiz misbehaved, I had another problem (which, of course, is gone now): Multiple users could not usably be (graphically) logged in at the same time, only the first login was functional. The other(s) would wind up with what looks like an empty screen and a cursor. So, what now? Should the bug be closed or can something be improved with the information I have supplied? -- visual effects revert on login https://bugs.launchpad.net/bugs/269463 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