Try updating your intel ddx -- nouveau is not responsible for the contents of the images it renders when in reverse-prime mode -- the primary gpu is (in your case, intel).
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1228506 Title: [Lenovo ThinkPad W530] Unsynchronised rendering on secondary displays To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1228506/+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
