U810 Audio

Two steps are required to get audio working nicely on the U810. Firstly, you need to drop out of X so you are at the login prompt and then switch to a console window.

Edit /etc/modprobe.d/sound so that the first line reads...

options snd-hda-intel model=fujitsu enable=1 index=0

Then restart the sound system (as root):

rcalsasound restart

Now switch back to the gui and login, then fire up KDE Control Centre ("Personal Settings" on my menu) and go to "Regional & Acessibility", then "Keyboard Layout". On the right of the panel you can choose the keyboard model - select a multimedia one (I chose Microsoft Wireless Multimedia). This tells KDE to expect multimedia key events.

Now the mixer works and the volume rocker takes it up/down and mutes with a press.