An update on my end: After a week of running xorg from 8.04 (hardy), I'm still seeing the problem. It's not as frequent as it was, but it's still happening.
With that, I have been able to apply the fix described above (using the keyboard to move a window across the screens & back), which generally seems to work. At some point, however, X seems to really freak out after a few days of use - I've had to restart X twice in the last week on a desktop session that is supposed to remain up. -- X.org will stop responding to mouse clicks on Ibex with Xinerama. Occurs frequently, Fatal Error. https://bugs.launchpad.net/bugs/296167 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