Ubuntu – Ubuntu 16.04LTS extended display not working

16.04displayexternal-monitorhdmi

I recently upgraded my system from Ubuntu 15.10 to 16.04LTS. But after the upgrade, my extended display is not being detected. I am connecting the second display through an HDMI port. I even tried System settings > Displays >detect display.

Does anyone know how to fix this?

Best Answer

The issue was with the nvidia graphics driver. This can be fixed by following the steps below:

  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-387

    For this, check what the latest version is... in my case as of January 2018 it's nvidia-387.

The graphics versions are here on Launchpad.

Reboot and your graphics issue should be fixed.

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