I can see three issues: 1. You're using Ubuntu 16.04. While that is supported, it is not well supported. Please consider trying Ubuntu 20.04 instead: https://ubuntu.com/download/desktop
2. The nvidia driver (when it is working) reports the screen is faulty: [ 19.136] (WW) NVIDIA(GPU-0): The EDID read for display device DFP-0 is invalid: the [ 19.136] (WW) NVIDIA(GPU-0): checksum for EDID version 1 is invalid. Please try to get a BIOS update from Acer to fix that. 3. The Nvidia driver is possibly not installed properly. Please uninstall it completely. Then if the system still doesn't work without it, reinstall it. ** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1878050 Title: Nvidia GT 240m gives problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1878050/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
