Sound.. then no sound after a while in 11.04

[PhonicLynx]

Just installed 11.04 and for the first time Alsa actually detected my IEC985 digital device without any trouble.. every other version has not worked at all until i've installed pulseaudio.

Sound works on boot of the system.. then after some time the sound just stops. Not in just one application.. but in every application.

Weird thing is.. I have more than one device hooked up too.. and I can go into Sound Preferences, select one of the other devices and the sound will work through it.

Not too sure how to troubleshoot as to what is going on with the sound?

[PhonicLynx]

Its weird... I can't produce it because ever time its different. I've looked at /var/logs/dmesg and monitored it and its not said anything substantial.. because I can't find what it causing it to freeze.

Can anyone give me some guidance as to where i could be looking other than that?

[PhonicLynx]

My Alsa info is here: http://www.alsa-project.org/db/?f=ae...d22bcbe549f0bb

[lidex]

Try setting a model in alsa-base.conf
Your options:

AD1988/AD1988B/AD1989A/AD1989B
==============================
  6stack	6-jack
  6stack-dig	ditto with SPDIF
  3stack	3-jack
  3stack-dig	ditto with SPDIF
  laptop	3-jack with hp-jack automute
  laptop-dig	ditto with SPDIF
  auto		auto-config reading BIOS (default)

Using a Terminal="Applications->Accessories->Terminal"
Open this file for editing:

 gksudo gedit /etc/modprobe.d/alsa-base.conf

Insert this line at the bottom:

 options snd-hda-intel model=

Save. Close. Reboot.
Check your levels in alsamixer.

 alsamixer

Press <F6> to select the correct soundcard.
Press <F3> to show playback levels. <F4> selects capture levels [or use <Tab>]
Use the left/right arrow keys to select and up/down arrow keys to change levels. <M> to mute/unmute.
Go to "System ->Preferences ->Sound" and make sure the correct soundcard is default and adjust your profile on the hardware tab.
On the output tab choose the correct device.

[PhonicLynx]

Okay.. I've added "options snd-hda-intel model=3stack-dig" .. I hope that is what you mean. Only time will tell if that works.

[PhonicLynx]

Nope...

DOing that didn't have any effect... sound has still disappeared.

It was there on reboot.. but 5 mins later.. it just stopped.

Interestingly enough.. if I go into pulseaudio and have a look at the outgoing sound.. it says that its pushing out sound.. but nothings coming out the speakers.

[lidex]

Alsa sees 5 devices, probably a conflict between them.

What is this output:

sudo fuser -v /dev/dsp* /dev/snd/* /dev/seq*

[PhonicLynx]

Specified filename /dev/dsp* does not exist.
Specified filename /dev/seq* does not exist.
                     USER        PID ACCESS COMMAND
/dev/snd/controlC0:  nat        1541 F.... pulseaudio
/dev/snd/controlC1:  nat        1541 F.... pulseaudio
/dev/snd/controlC2:  nat        1541 F.... pulseaudio
/dev/snd/controlC5:  nat        1541 F.... pulseaudio

[PhonicLynx]

How is this for weird... If I leave Pulse Audio Volume Control on the sound does not disappear.. not sure why this is.. but if I close it.. give it a good 5 mins or so and it will disappear.

[lidex]

Interesting, saw that once before but didn't follow the thread.
Do me a favor - the next time audio drops out run that last command again.
It should tell us what is taking control of the sound card.
The output you posted is perfect.