As temporary solution you can uncheck "Reduce backlight brightness" and "Dim display when idle" options in power management in "On battery power" tab.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/657949 Title: Screen brightness on MacBookPro7,1 goes below 100% immediately after gdm login _______________________________________________ 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