I am trying to get dual monitor to work, but I can't seem to be able to delete all the drivers. When I reboot after these instructions:
1.Run sudo apt-get purge nvidia-*
2.Run sudo add-apt-repository ppa:graphics-drivers/ppa
3.Run sudo apt-get update
4.Run sudo apt-get install nvidia-367
I still have the drivers when I open software and updates, and the second monitor does not show up. Please help. Thanks.