Hi,I think alsa now needs depmod I have alsa working on two machines with TC4.1 and think that was only one of my problems,I run alsamixer first,am presented with graphic panel,arrow up to increase the left hand volume column to 100 check that there is not an "mm" at the bottom if so press m to unmute,do the same to PCM. Press escape,type sudo alsactl store which creates etc/asound.state. add asound.state to .filetool.lst.Add alsactl restore to bootlocal.sh and the settings should persist.Hope this helps.
Rgds oldgit