alsa not working since upgrade

B15HOP · 2010-07-27 21:09:11

I just did a package update with alsa.

root@Enterprize_D # lspci | grep audio
01:06.0 Multimedia audio controller: Creative Labs SB0400 Audigy2 Value

root@Enterprize_D # lsmod|grep '^snd' | column -t
snd_seq_dummy       1447    0
snd_seq_oss         28928   0
snd_seq_midi_event  5420    1   snd_seq_oss
snd_seq             50530   5   snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss         39096   0
snd_mixer_oss       16932   1   snd_pcm_oss
snd_emu10k1         144591  0
snd_rawmidi         19235   1   snd_emu10k1
snd_ac97_codec      110525  1   snd_emu10k1
snd_pcm             71653   3   snd_pcm_oss,snd_emu10k1,snd_ac97_codec
snd_seq_device      5241    5   snd_seq_dummy,snd_seq_oss,snd_seq,snd_emu10k1,snd_rawmidi
snd_timer           19660   3   snd_seq,snd_emu10k1,snd_pcm
snd_page_alloc      7201    2   snd_emu10k1,snd_pcm
snd_util_mem        2312    1   snd_emu10k1
snd_hwdep           6126    1   snd_emu10k1
snd                 57225   11  snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_ac97_codec,snd_pcm,snd_seq_device,snd_timer,snd_hwdep

b15hop@Enterprize_D $ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root       60 Jul 28 04:25 by-path
crw-rw---- 1 root audio 116, 12 Jul 28 04:25 controlC0
crw-rw---- 1 root audio 116,  3 Jul 28 04:25 hwC0D0
crw-rw---- 1 root audio 116,  5 Jul 28 04:25 midiC0D0
crw-rw---- 1 root audio 116,  4 Jul 28 04:25 midiC0D1
crw-rw---- 1 root audio 116, 11 Jul 28 04:25 pcmC0D0c
crw-rw---- 1 root audio 116, 10 Jul 28 04:35 pcmC0D0p
crw-rw---- 1 root audio 116,  9 Jul 28 04:25 pcmC0D1c
crw-rw---- 1 root audio 116,  8 Jul 28 04:25 pcmC0D2c
crw-rw---- 1 root audio 116,  7 Jul 28 04:25 pcmC0D2p
crw-rw---- 1 root audio 116,  6 Jul 28 04:25 pcmC0D3p
crw-rw---- 1 root audio 116, 13 Jul 28 04:25 seq
crw-rw---- 1 root audio 116,  2 Jul 28 04:25 timer
b15hop@Enterprize_D $

Should all work...
But no sound:
mplayer and aplay both play the audio file / video file.

alsamixer is not muted. :S

root@Enterprize_D # amixer get Master
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined cvolume cswitch cswitch-joined penum
  Playback channels: Mono
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 100 Capture 0 - 31
  Mono: Playback 51 [51%] [-19.60dB]
  Front Left: Capture 23 [74%] [-12.00dB] [on]
  Front Right: Capture 23 [74%] [-12.00dB] [on]

root@Enterprize_D # amixer get PCM
Simple mixer control 'PCM',0
  Capabilities: cvolume penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 100
  Front Left: Capture 100 [100%] [0.00dB]
  Front Right: Capture 100 [100%] [0.00dB]

.. but no sound?

karol · 2010-07-28 01:06:21

Probably not the same problem but I can't think of anything else http://bugs.archlinux.org/task/19970

mikej_96 · 2010-07-30 20:18:51

I am having the same issue as well and cannot solve it. For me, mplayer is the only thing that will play audio on my system. Things like totem, flash, skype, ect.. all do not work. What is funny, is this seems to happen randomly. If I reboot, it sometimes works. When the problems occur, mplayer gives me these messages:

[AO OSS] audio_setup: Can't open audio device /dev/dsp: Invalid argument
[AO_ALSA] alsa-lib: pcm_hw.c:1293:(snd_pcm_hw_open) open '/dev/snd/pcmC0D0p' failed (-2): No such file or directory
[AO_ALSA] alsa-lib: pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
[AO_ALSA] Playback open error: No such file or directory
[JACK] cannot open server
[AO SDL] Samplerate: 44100Hz Channels: Stereo Format s16le
[AO_ALSA] alsa-lib: pcm_hw.c:1293:(snd_pcm_hw_open) open '/dev/snd/pcmC0D0p' failed (-2): No such file or directory
[AO_ALSA] alsa-lib: pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
AO: [sdl] 44100Hz 2ch s16le (2 bytes per sample)

Is there a way to 'restart' alsa? Running alsaconf doesn't fix the problem...

Any thoughts?

Stebalien · 2010-07-30 21:22:17

~~Are you in the audio group?~~ -- stupid question.
Shouldn't PCM have a Playback volume instead of a Capture volume?

Last edited by Stebalien (2010-07-30 21:30:54)

B15HOP · 2010-08-03 01:37:59

Stebalien wrote:

~~Are you in the audio group?~~ -- stupid question.
Shouldn't PCM have a Playback volume instead of a Capture volume?

You mean this?

b15hop@Enterprize_D $ groups
lp video audio optical storage users b15hop

I'll try the kernel-lts to see if that is the problem.

B15HOP · 2010-08-03 01:40:53

Thing is, in alsamixer, F3 (playback) the volume is right up. I've made sure none of them are mute. I should still hear something even with 5% volume. So 100% would blow my ears away, but I only get silence.

B15HOP · 2010-08-03 02:27:36

kernel26-lts there is no audio.
Interesting to note that when the system boots, there is a pop noise so something must be happening with the audio driver...

Arch Linux

#1 2010-07-27 21:09:11

alsa not working since upgrade

#2 2010-07-28 01:06:21

Re: alsa not working since upgrade

#3 2010-07-30 20:18:51

Re: alsa not working since upgrade

#4 2010-07-30 21:22:17

Re: alsa not working since upgrade

#5 2010-08-03 01:37:59

Re: alsa not working since upgrade

#6 2010-08-03 01:40:53

Re: alsa not working since upgrade

#7 2010-08-03 02:27:36

Re: alsa not working since upgrade

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