In Mate Tweak the window manager drop down is missing the (Compton GPU compositor) and Marco (Compton GPU compositor).
The only choices available are Marco (Software compositor) or Marco (No compositor).
Also noticed that the (Displays) tab does not detect any monitor and the (Nvidia Server Settings) tab does not launch.
This occurred after installation of the proprietary Nvidia driver from ppa which is in fact the only driver that stabilizes my system.
Any clues how to get these issues resolved?
Can these compositors be reinstalled from ppa?
How to get monitor detected and the Nvidia settings tool to work?
Any insight in to what might be going on is greatly appreciated.