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Old 09-05-2011, 01:06 PM   #1
Registered: Sep 2006
Posts: 64

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Sound, and then no sound. Debian squeeze.

I got the sound working; but later it stopped working. I restarted alsa and got it back; but this is the message that I received:

edhe@hebrews:~$ sudo /etc/init.d/alsa-utils stop
[sudo] password for edhe:
Shutting down ALSA...done.

edhe@hebrews:~$ sudo alsa force-reload
Terminating processes: 2157 3889 3909 3929 (with SIGKILL 3948 (failed: processes still using sound devices: 3968(pulseaudio)).
/usr/sbin/alsa: Warning: Processes using sound devices: 3968(pulseaudio).
Unloading ALSA sound driver modules: snd-hda-codec-realtek snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-seq snd-timer snd-seq-device snd-page-alloc (failed: modules still loaded: snd-hda-codec-realtek snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-timer snd-page-alloc).
Loading ALSA sound driver modules: snd-hda-codec-realtek snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-seq snd-timer snd-seq-device snd-page-alloc.
edhe@hebrews:~$ sudo /etc/init.d/alsa-utils start
Setting up ALSA...done.

pulseaudio caused the loss of sound???
Old 09-05-2011, 01:15 PM   #2
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Registered: Jan 2005
Location: USA and Italy
Distribution: Debian testing/sid; OpenSuSE; Fedora; Mint
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Pulseaudio is difficult if not impossible to restart. That makes the whole sound system almost impossible to get working again after it fails. There are several bug reports relating to this issue. Pulseaudio is a CPU hog, so users have a habit of killing the process, but only a reboot will get sound back. I use Wheezy, and I'm pretty sure the problem is not quite fixed.

If you have Intel HDA, you might have a problem with the external amplifier switched on. You can switch it back off with alsamixer.
Old 09-05-2011, 01:23 PM   #3
Registered: Sep 2006
Posts: 64

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alsamixer: function snd_ctl_open failed for default: no such device


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