Comment 28 for bug 1348890

tArKi (djtarki) wrote :

Hi,

I've edited /etc/default/grub as root and added "acpi_osi=" at the and of the kernel boot parameters:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="

Then I've run "update-grub" as root and rebooted the laptop.

Now Fn+ F2/F5/F6 work fine! :) (that is, WiFi and backlight function keys)

$ sudo dmidecode -s bios-version
S301LA.214
$ uname -a
Linux nablanext 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Best regards