I'm not sure how the Nvidia driver can be accidentally installed. Can you please run this command on the affected system?
apport-collect 1665707 If the problem isn't happening any more then you don't need to do anything, and this bug will close automatically after 60 days of no comments. ** Package changed: xorg-server (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1665707 Title: Nvidia driver causing system-udev hog on a non-nvidia machine Status in Ubuntu: Incomplete Bug description: I have a video playback/scrolling flickering issues on HD5500, AMD M260 Topaz. Somehow the nvidia has been automatically installed and the system didn't realize that there is no nvidia card, so almost crapped my amd card, and made half of the monitor unusable with lines. (like in a crappy old monitor) syslog told several times that NVidia adapter not found, and system- udev realized that something is trying accessing too frequently to a device, but the NVidia is too big company not to try to kill an amd based graphics card. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1665707/+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