Comment 25 for bug 1687246

I am having this problem on ubuntu 18.04 on my dell precision m3800

it has built in 13inch 4k screen which is perfectly setup and scaled
but i also have external 40in 4k screen on display port , this gets scaled
to the same settings as the 13inch screen which is waste.

under unity i could scale each independently and it was excellent

additionally my external screen now only runs at a horrible 30hz when it used to run at 60hz
the internal screen runs at 60hz . xrandr doesn't give me more options

I am using the nvidia driver in fulltime optimus mode with the built in