I’m unable to make my three displays work with the latest NVIDIA driver 340.102 and Ubuntu 16.04
I have two cards GeForce GTS250 - NVIDIA X Server is able to detect both cards and my 3 monitors are recognized correctly. However Ubuntu Unity does not recognize the 2nd and the 3rd. When I move my mouse across displays, I’m able to move it but the cursor changes from an arrow to an X. I can’t move any window across just the mouse. the other two displays remain black (no image).
I tried installing the NVIDIA driver via ppa or directly downloading from NVIDIA. The best combination, I was able to see was all three displays showing the login UI but the login failed each time. I found in the forum that several users are having a login issue due to driver upgrade.
I’m out of ideas. I would like to see a test report from NVIDIA showing how they tested the driver before releasing it.
Please shed some light.
Thanks for your help.