Resolution 1920x1200 not detected

[alexgaudino]

After updating nvidia driver i've lost my resolution which is 1920x1200
Now in nvidia x settings-manager the max resolution is 1920x1080

So i have the screen pulled to the left and a black part of the screen on the right : It's really annoying..

I tried the most popular solutions like xrandr and edit/delete xorg.conf but no one works !

Other problem is when i wanted to restore previous driver version, it wasn't compatible and I had a problem of dependence.

I need to change the distribution?
Is there professional people to help me?

Best regards.