I can confirm that FHD lcd backlight controls F4/F5 works from BIOS to grub included, and broken once ubuntu is loaded. In the same time, keyboard backlight control F6 works only once ubuntu is loaded (not from BIOS to grub included).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1169376 Title: XPS13 backlight stopped working after update 3.8.0-18.28 To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1169376/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
