Comment 52 for bug 1348890

lechnerlich (lechnerlich) wrote :

also effected

sudo dmidecode -s bios-version

uname -a
Linux zenbuntu 3.19.0-25-generic

adjusting brightness in settings works, but not with fn+f5/f6
acpi_listen does not detect the keys press, evtest detects also nothing.
tested various bootoptions - nothing helped (excepted that then I was also not able to adjust brightness in the settings)