Please unload snd_intel8x0, then reload it with the ac97_quirk=hp_only parameter: $ sudo modprobe -r snd_intel8x0 $ sudo modprobe snd_intel8x0 ac97_quirk=hp_only If the above sequence restores proper control, please attach (don't inline) the output from ``lspci -nv''. -- headphone control disappeared https://launchpad.net/bugs/24172