Hi Daniel. Had to do a reinstall; hadn't left any space on the drive for an EFI partition.
I installed the Ubuntu 13.04 x64 release, which came with the 3.8.0-19 kernel. This had a strange result, which was that the screen was fixed to minimum (backlight off) brightness, and wouldn't change. Doing a software update to 3.8.0-27 fixed the issue, and resulted in the normal operation which I was expecting. My previous installation, which booted in legacy bios, had also been updated to 3.8.0-27. Brightness wasn't operational on boot or after resume until a script like Frank's was run. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1163720 Title: Brightness control broken on XPS13 with 3.8.0-16 and 3.8.0-22 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1163720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
