Public bug reported:
The keyboard backlight of my SONY VAIO SE15 does not work.
This is the corresponding dmesg output
[ 21.500543] sony_laptop: handle 0x014b: keyboard backlight setup already
done for 0x0143
[ 21.500546] sony_laptop: couldn't set up keyboard backlight function (-16)
[ 21.500774] sony_laptop: brightness ignored, must be controlled by ACPI
video driver
[ 21.500785] sony_laptop: SNC setup done.
daniel@daniel-laptop:~$ lsb_release -rd
Description: Ubuntu Utopic Unicorn (development branch)
Release: 14.10
daniel@daniel-laptop:~$ uname -a
Linux daniel-laptop 3.16.0-16-generic #22-Ubuntu SMP Wed Sep 17 18:47:43 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1372618
Title:
Sony vaio keyboard backlight does not work
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