I've had exactly the same problem described above. Installed Nvidia drivers via via Additional Drivers and all was working fine. After that I decided to remove the Nvidia drivers and rebooted the laptop. My screen resolution was set as 640x480, without any possibility of changing it. Asking for help, on #ubuntu+1 @ Freenode, someone told me to check /etc/modprobe.d for a nvidia conf file. I've done that and it was there. Deleting the file and rebooting the laptop solved the issue.
Exterminador -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-340 in Ubuntu. https://bugs.launchpad.net/bugs/1761593 Title: Uninstall left nouveau blacklisted Status in nvidia-graphics-drivers-340 package in Ubuntu: Confirmed Bug description: Following a successful install and subsequent use of nvidia-340 - uninstallation of nvidia via Additional Drivers led to a reboot to a desktop at 640x480 px. Investigation found an nvidia created file left on the system blacklisting nouveau, deleted file and rebooted to normal desktop. Didn't think about ubuntu-reporting this - can try and replicate and apport-collect if it's of any use. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1761593/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
