I have had a lot of trouble with sound on Acer Slackware 15 where the only sound input is "Dummy Output". I've tried many solutions (see file in Dropbox/Computer/Linux/Slackware for some examples.

The onlys solution that seems to work consistently is using i3 window manager. The pa-applet works niceley and if pulseaudio is not working correctly, click on the applet, click "more" and "terminate server".

Nup - that didn't work.

Tried this in /etc/modprobe.d/sound.conf:

options snd slots=snd-hda-intel options snd-hda-intel id=PCH index=0

Which is supposed to make sound card be at the same place all the time instead of dynamic allocation.

Went back to my previous route of using my pa-reset command:

eAudio reset pa-reset

1. Fixes only dummy output problem on Slackware
2. sudo sh /etc/rc.d/rc.pulseaudio restart
3. echo "If this does't work the first time, "
4. echo "you might have to run alsamixer "
5. echo "<f6> select card default:0 HDA Intel PCH"
6. echo "then run this command again."

Did this and we got our speakers as output. At last!