[BugReport] Xinerama Broken in 190.42
I just installed 190.42 and started X. Everything seems fine as far as the graphics image is concerned; however, the mouse doesn't work on the second screen. Mousing there loses control of the mouse (key clicks don't work, position jumps around more or less randomly, cursor flickers) and after a while X crashes.
I'm running the git master (as of last week or so) of X, but this has been a recurring problem with the last several 190.xx drivers. Xinerama used to work with this system.
I've attached the output of nvidia-bug-report.