I have not tried it myself yet but there is a workaround mentioned on askubuntu.[0] Delete your ~/.config/monitors.xml
[0] https://askubuntu.com/questions/23869/could-not-apply-the-stored- configuration-for-the-monitor -- 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/1511247 Title: Ubuntu 15.10 Could not apply the stored configuration for monitors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1511247/+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