I also am having this problem spent about 6 hours so far with no luck solving it. When I put "nvidia" in xorg.conf the display "Apple Cinema 23" goes into sleep mode. This monitor has DVI input
-- black screen on reboot with restricted drivers and "desktop effects" enabled https://bugs.launchpad.net/bugs/175939 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs