550 Ti

  7 years ago
  Nvidia (GPU)
  Mint (older version)
  Works perfectly
What works:

all working perfectly using repo and newest nvidia driver

*although I am getting tearing in full screen durring video playback in kaffeine and vlc

Additional notes:

For switching between monitor and tv I use display rather than nvidia-settings.
I noticed nvidia-settings didn't always retain the settings I had set.
No issue using display in cinnamon system settings.

Dual output issue
On reboot disable output to TV via hdmi was enabled again after being disabled a work-a-round is to:

create the following folder

sudo mkdir /usr/share/gnome-shell/modes

this seems to resolve the issue