I have been having this issue when I moved to 14. It worked great in 13. It also happens when I go to system settings and turn it off. If I plug it back in, it stays in dim unmodified state. Then unplug again, it will change back into a correct state.
-- 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/1271410 Title: screen brightness does not work after removal of second monitor Status in “xorg” package in Ubuntu: Invalid Bug description: Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 Conditions: Attach second monitor while on batter power. Remove second monitor. Expected behavior: Screen brightness would stay at current setting and be adjustable using function keys or system settings. Actual behavior: Screen brightness is dim to lowest level and not adjustable using functions keys or system settings. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1271410/+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
