This doesn't seem to be a kernel bug. Reassigning to xorg since you mention restarting X resolves the issue. Care to take a look at https://wiki.ubuntu.com/X/Debugging and providing the requested log files mentioned there. Thanks.
This doesn't seem to be a kernel bug. Reassigning to xorg since you mention restarting X resolves the issue. Care to take a look at https:/ /wiki.ubuntu. com/X/Debugging and providing the requested log files mentioned there. Thanks.