I'm having a problem with my sound.
When I log-out of ubuntu, I'm able to hear the system sound (logout drum).
However, even a single sound does not play while I'm logged in.
I have tried adding the following string in /etc/modprobe.d/alsa-base.conf:
"options snd-hda-intel model=3stack"
Details are as under:
Codec: SigmaTel STAC9221 A2
$ sudo cat /proc/asound/pcm
00-00: STAC9221 A2 Analog : STAC9221 A2 Analog : playback 1 : capture 1
00-01: STAC9221 A2 Digital : STAC9221 A2 Digital : playback 1
00-02: STAC9221 A2 Alt Analog : STAC9221 A2 Alt Analog : capture 1
Settings are in attachments.