Public bug reported: According to RandR X protocol version 1.4.0, the minimum brightness can't be 0. 0 is used to turn off the backlight. The minimum brightness can only be 1.
http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt ** Affects: gnome-desktop Importance: Unknown Status: Unknown ** Affects: gnome-desktop3 (Ubuntu) Importance: Undecided Status: New ** Bug watch added: GNOME Bug Tracker #733044 https://bugzilla.gnome.org/show_bug.cgi?id=733044 ** Also affects: gnome-desktop via https://bugzilla.gnome.org/show_bug.cgi?id=733044 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-desktop3 in Ubuntu. https://bugs.launchpad.net/bugs/1340544 Title: gnome-rr: The minimum brightness can not be 0. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-desktop/+bug/1340544/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs