According to freedesktop.org bug 13709 at http://bugs.freedesktop.org/show_bug.cgi?id=13709 the issue lies with the kernel.
-- Backlight doesn't turn on after resume https://bugs.launchpad.net/bugs/189260 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
