Overclocking nVidia stopped working today with the latest update.

SCREEN DUMP:


Available core offset for GPU 5 is in
Applying CoreOffset:
Applying PowerLimit: 150 watt for GPU 5
Applying CoreOffset: 150 MemoryOffset: 1000 for GPU 6 with GPU Type: 3
Invalid MIT-MAGIC-COOKIE-1 keyFailed to connect to Mir: Failed to connect to ser
ver socket: No such file or directory
Unable to init server: Could not connect: Connection refused

ERROR: The control display is undefined; please run `nvidia-settings --help`
       for usage information.