Comment 0 for bug 1761593

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.