Re: [LAU] Audigy soundcard silent after upgrade to Ubuntu Studio

Here's the next instalment. First, the background. The problem was that a Creative Audigy2 card that had worked perfectly in Ubuntu 8.04 suddenly went silent after an upgrade to Ubuntu Studio 9.04. It still worked perfectly in Windows on the same dual boot machine. <snip> I've done a bit more testing and reported it on the Ubuntu bug reporting system as follows. The bug is at; https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/406356 To reproduce the bug then repair the damage, do the following. Delete /var/lib/asound.state (to mimic a fresh install, when it has not yet been created) Run alsactl init The sound card is probed. Alsactl reports; Unknown hardware: "Audigy2" "SigmaTel STAC9750,51" "AC97a:83847650" "" "" Hardware is initialized using a guess method A version of asound.state is created that lacks (at least) a master volume mute switch. There is no sound output. Restore the previously good asound.state, run 'alsactl restore' and the card works again. Does this mean that something (I don't know what) needs to be improved so it can recognise this card (Audigy 2 Value [SB0400)?