I guess this bug is the same issue as discussed in this bugreport: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/826386 (No backlight display Acer Aspire 5734Z).
Maybe the workaround described in #33 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/826386/comments/33) still works. See also http://ubuntuforums.org/showpost.php?p=10740136&postcount=3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/910536 Title: Screen too dark, no backlight, unusable X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/910536/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
