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
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