Congratulations on going stable! I am experiencing this issue as well, and this is the one bug keeping me from using Nouveau. I would really like to have xrandr 1.2 support, so please let me know if there is anything I could provide to help troubleshoot this.
Notes: Thinkpad W510 01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [Quadro FX 880M] (rev a2) When using the nvidia driver, the following option needs to be added to the X config file. Option "RegistryDwords" "EnableBrightnessControl=1" When using the nouveau driver, brightness controls works fine. After suspend and resume, brightness stuck on max. -- 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/921321 Title: nouveau: dark screen after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/921321/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

