Hi Christopher, Thanks for your response. At the moment I have unistalled the nvidia drivers and am using the nouveau drivers. Do I need to re-install the nvidia drivers before I carry out the command you have asked for?
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1394189 Title: nvidia proprietary driver stopped working after ubuntu 14.04 updates from 18 November 2014 Status in xorg package in Ubuntu: Incomplete Bug description: Dual Screen not working on 14.04 when I log in today. Get error message: Failed to apply configuration: %s GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._gnome_2drr_2derror_2dquark.Code2: could not set the configuration for CRTC 63 Yesterday I applied updates. Ubuntu software history shows these as: bsdutils(2.20.1-5.1ubuntu20.2,2.20.1-5.1ubuntu20.3) xserver-xorg-video-intel(2.99.910-0ubuntu1.2,2.99.910-0ubuntu1.3) Previous to this I have had no problems with dual screen on 14.04. Solved this by reverting back to the Nouveau driver rather than using the recommended proprietary driver under the Softwares &Updates>Additional Drivers link. The recommended nvidia proprietary driver (version 331.38) previously worked but doesn't work after the above Ubuntu updates. Graphics card used GeForce GT 540M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1394189/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp