I'm seeing this same problem, the crash also happens using the shortcut key alt-spacebar. My system has an Nvidia card running the current version of the proprietary drive. I have not tried other drivers.
I can restore the window decoration by going to "CompizConfig Settings Manager" > Disable "Window Decoration" > Enable "Window Decoration". I've not found any Compiz settings that cause the problem to not happen.
Let me know if there are debug/log files I can provide to help.
I'm seeing this same problem, the crash also happens using the shortcut key alt-spacebar. My system has an Nvidia card running the current version of the proprietary drive. I have not tried other drivers.
I can restore the window decoration by going to "CompizConfig Settings Manager" > Disable "Window Decoration" > Enable "Window Decoration". I've not found any Compiz settings that cause the problem to not happen.
Let me know if there are debug/log files I can provide to help.