This is a simple patch to fix this issue for sna / uxa mode and tested on UMA / discrete card.
** Patch added: "fix-no-backlight.patch" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1373776/+attachment/4245974/+files/fix-no-backlight.patch -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1373776 Title: internal panel brightness set to 0 when switching back to internal- only mode To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1373776/+subscriptions _______________________________________________ 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