In my particular case the speaker cable on the motherboard was unplugged. Just before to install 16.04 my laptop was updated with a SSD disk and the technician forgot to plug that wire.
However, I see this bug reported in several places.
Regards
In my particular case the speaker cable on the motherboard was unplugged. Just before to install 16.04 my laptop was updated with a SSD disk and the technician forgot to plug that wire.
However, I see this bug reported in several places.
Regards