I have a similar bug. In my case the screen stays black except for the mouse cursor. It is not frozen though, I can move the mouse cursor just fine and it changes shape when I get in the middle of the screen (over the invisible password prompt). When I blindly enter my password the screen gets unlocked, as I can see by moving the cursor around (it changes shape according to the applications on my invisible workspace). Only way to regain access so far was to kill the session.
Can any of you still move your mouse when it happens? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/740126 Title: compiz hangs randomly several times per day -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
