there's an error in my previous report. - kernel 3.8.0-29 : everything ok, brightness is adjustable, with CTRL+F4/F5 or via a XFCE widget
- kernel 3.8.0-30 : nothing work, brightness always minimum, CTRL+F4/F5 doesn't work, XFCE widget doesn't work. My laptop is a Dell XPS 13 with the 1080p display, BIOS A09, UEFI boot. me@mylaptop:~$ uname -a Linux mylaptop 3.8.0-29-generic #42-Ubuntu SMP Tue Aug 13 19:40:39 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux -- 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: 8086:0166 [Dell XPS 13 L322X] 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
