I have tried the acpi_osi boot parameter and now the brightness keys work. Thank you! Asus F551M hasn't an ambient light sensor.
So, with this boot parameter (for brightness keys), "options snd-hda-intel model=asus position_fix=1" in alsa-base.conf (for headphones) and updating to kernel 3.16 (for card reader), all computer devices works in Ubuntu.
Hi,
I have tried the acpi_osi boot parameter and now the brightness keys work. Thank you! Asus F551M hasn't an ambient light sensor.
So, with this boot parameter (for brightness keys), "options snd-hda-intel model=asus position_fix=1" in alsa-base.conf (for headphones) and updating to kernel 3.16 (for card reader), all computer devices works in Ubuntu.