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Old 09-19-2010, 08:14 PM   #1
lucmove
Senior Member
 
Registered: Aug 2005
Location: Brazil
Distribution: Debian Stretch
Posts: 1,063

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Unhappy All mute after upgrading ALSA


I didn't (maybe still don't) have ALSA loopback so I could record streaming, so I upgraded ALSA following these instructions:

http://alsa.opensrc.org/index.php/Ja...loop_if_needed

The only part I didn't follow verbatim was the final step:

Quote:
Allrighty, time to load it. But before that, shut down all audio apps (including firefox). Once done, do this:

Code:
sudo alsa force-unload
sudo modprobe snd-whatever-module-you-need
sudo modprobe snd-aloop
I was unsure about "snd-whatever-module-you-need" so I decided to reboot.

When KDE was just about to kick in, I saw a lot of new text I had never seen before scroll past very, very fast. Then it stopped and I could see it had something to with ALSA, but I couldn't really read anything. KDE started and... now I have no sound.

I checked kmixer, it looks normal. It doesn't seem to be mute.

I ran alsamixer in the command line, it doesn't seem to be mute either.

I ran Kcontrol and checked the audio section, couldn't figure anything out.

Here is the output of lsmod BEFORE the upgrade:

Code:
$luc> lsmod | grep snd                            
snd_hda_intel         434100  6
snd_pcm_oss            46336  0
snd_mixer_oss          22656  2 snd_pcm_oss
snd_pcm                83076  3 snd_hda_intel,snd_pcm_oss
snd_seq_dummy          10756  0
snd_seq_oss            37760  0
snd_seq_midi           14336  0
snd_rawmidi            29696  1 snd_seq_midi
snd_seq_midi_event     15104  2 snd_seq_oss,snd_seq_midi
snd_seq                56880  7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              29704  3 snd_pcm,snd_seq
snd_seq_device         14988  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    62756  18 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              15200  2 snd
snd_page_alloc         16904  2 snd_hda_intel,snd_pcm
Here is the output of lsmod AFTER the upgrade:

Code:
$luc> lsmod | grep snd                            
snd_hda_codec_realtek   226308  1
snd_hda_intel          35840  3
snd_hda_codec         100992  2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              15364  1 snd_hda_codec
snd_pcm_oss            46112  0
snd_mixer_oss          23040  3 snd_pcm_oss
snd_pcm                85636  3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_oss            36224  0
snd_seq_midi_event     15232  1 snd_seq_oss
snd_seq                57584  5 snd_seq_oss,snd_seq_midi_event
snd_timer              29320  2 snd_pcm,snd_seq
snd_seq_device         15372  2 snd_seq_oss,snd_seq
snd                    69412  14 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_seq,snd_timer,snd_seq_device
soundcore              15200  3 snd
snd_page_alloc         17032  2 snd_hda_intel,snd_pcm
Looks like I have lost snd_seq_dummy, snd_seq_midi and snd_rawmidi. I don't need midi, so I just tried to load snd_seq_dummy with modprobe. The module is not found.

I reboot another two times hoping to be able to read something in that new boot sequence text, but I don't see it anymore. It's gone.

I don't know what else to do. Any ideas?

Last edited by lucmove; 09-19-2010 at 08:15 PM.
 
Old 09-20-2010, 02:26 PM   #2
instag
LQ Newbie
 
Registered: Sep 2010
Distribution: Slackware
Posts: 15

Rep: Reputation: 0
Try
Code:
rm /etc/asound.*
as root and then reboot. It might help.
 
Old 09-20-2010, 03:01 PM   #3
lucmove
Senior Member
 
Registered: Aug 2005
Location: Brazil
Distribution: Debian Stretch
Posts: 1,063

Original Poster
Rep: Reputation: 83
I don't have any rm /etc/asound.* files. Maybe you have those in Slackware, but I am having this problem in Ubuntu.
 
Old 09-21-2010, 08:43 AM   #4
lucmove
Senior Member
 
Registered: Aug 2005
Location: Brazil
Distribution: Debian Stretch
Posts: 1,063

Original Poster
Rep: Reputation: 83
Well, after a few reboots, it works. Suddenly I have sound. Just like that. Go figure.

Marking as solved, though I have no idea how that hapenned...
 
  


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