This bug was fixed in the package xserver-xorg-video-intel - 2:2.99.910-0ubuntu1.2
--------------- xserver-xorg-video-intel (2:2.99.910-0ubuntu1.2) trusty-proposed; urgency=medium [ Maarten Lankhorst ] * Fix black screen with SNA. (LP: #1365695) [ Timo Aaltonen ] * fix-no-backlight.diff: Don't let backlight switch off when cycling through display modes. (LP: #1373776) -- Maarten Lankhorst <maarten.lankho...@ubuntu.com> Mon, 20 Oct 2014 09:54:57 +0200 ** Changed in: xserver-xorg-video-intel (Ubuntu Trusty) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, 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 Status in HWE Next Project: New Status in “xserver-xorg-video-intel” package in Ubuntu: Fix Released Status in “xserver-xorg-video-intel” source package in Trusty: Fix Released Bug description: [Impact] the brightness of the internal panel can get set to the lowest value when going through the display modes and back to internal-only mode this is fixed in a later upstream release, but that can't be backported so a distro patch is needed [Test case] use the laptop hotkey to switch between modes until you get a blank internal panel [Regression potential] slim, the patch is simple enough To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1373776/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp