Found the following link: http://askubuntu.com/questions/412181/nvidia-settings-received-an-x-window-system-error-error-was-badvalue-intege
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/1313274 Title: After upgrading to 14.04, nvidia-settings crashes with "BadValue" X Window System error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-settings/+bug/1313274/+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