[Gutsy] no more audio after update kernel 2.6.22-10

mpg321 -s <filename> | aplay -vf dat

gives

decoder: i586/pentium
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layers 1, 2 and 3
        version 0.66; written and copyright by Michael Hipp and others
        free software (LGPL/GPL) without any warranty but with best wishes

Directory: ../path/
Playing MPEG stream 1 of 1: <filename> ...
Title: title Artist: artist
Comment: , AG# 00000000 Album: title
Year: year Genre: genre
MPEG 1.0 layer III, 128 kbits/s, 44100 Hz joint-stereo
Riproduzione in corso dati grezzi 'stdin' : Signed 16 bit Little Endian, Frequenza 48000 Hz, Stereo
Plug PCM: Soft volume PCM
Control: PCM Playback Volume
min_dB: -51
max_dB: 0
resolution: 256
Its setup is:
  stream : PLAYBACK
  access : RW_INTERLEAVED
  format : S16_LE
  subformat : STD
  channels : 2
  rate : 48000
  exact rate : 48000 (48000/1)
  msbits : 16
  buffer_size : 16384
  period_size : 1024
  period_time : 21333
  tick_time : 0
  tstamp_mode : NONE
  period_step : 1
  sleep_min : 0
  avail_min : 1024
  xfer_align : 1024
  start_threshold : 16384
  stop_threshold : 16384
  silence_threshold: 0
  silence_size : 0
  boundary : 1073741824
Slave: Direct Stream Mixing PCM
Its setup is:
  stream : PLAYBACK
  access : MMAP_INTERLEAVED
  format : S16_LE
  subformat : STD
  channels : 2
  rate : 48000
  exact rate : 48000 (48000/1)
  msbits : 16
  buffer_size : 16384
  period_size : 1024
  period_time : 21333
  tick_time : 0
  tstamp_mode : NONE
  period_step : 1
  sleep_min : 0
  avail_min : 1024
  xfer_align : 1024
  start_threshold : 16384
  stop_threshold : 16384
  silence_threshold: 0
  silence_size : 0
  boundary : 1073741824
Hardware PCM card 0 'HDA Intel' device 0 subdevice 0
Its setup is:
  stream : PLAYBACK
  access : MMAP_INTERLEAVED
  format : S16_LE
  subformat : STD
  channels : 2
  rate : 48000
  exact rate : 48000 (48000/1)
  msbits : 16
  buffer_size : 16384
  period_size : 1024
  period_time : 21333
  tick_time : 4000
  tstamp_mode : NONE
  period_step : 1
  sleep_min : 0
  avail_min : 1024
  xfer_align : 1024
  start_threshold : 1
  stop_threshold : 1073741824
  silence_threshold: 0
  silence_size : 1073741824
  boundary : 1073741824

Hi,
I had the same problem and finally solved it by just installing linux-ubuntu-modules-2.6.22-10-generic, so check out if it's not your case too.

The problem is that there is no metapackage for linux-ubuntu-modules to keep them up to date with the kernel automatically, one must do it manually.

And I forgot:
Check your mixer then, after update the "speaker" slider in KMix was set to the minimum, don't know why.

Hi,

# apt-show-versions | grep ubuntu-modules
linux-ubuntu-modules-2.6.22-10-generic/gutsy uptodate 2.6.22-10.23

it's installed and mixer is to the max. The strange thing is that mixers return just "Master" and "PCM" volume. Before kernel update they return more "volumes-voice".

Problems again:

suddenly I cannot open any mp3-file. For example mpg123 returns:

$ mpg123 <filename>
decoder: i586/pentium
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layers 1, 2 and 3
        version 0.66; written and copyright by Michael Hipp and others
        free software (LGPL/GPL) without any warranty but with best wishes
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to open slave
audio_open(): cannot open device default
audio: Invalid argument

Directory: <pathdir>
Playing MPEG stream 1 of 1: <filename> ...
Title: title Artist: artist_name
Comment: Album:
Year: Genre: Unknown
MPEG 1.0 layer III, 192 kbits/s, 44100 Hz mono
[../../../src/audio.c:269] error: Unable to set up output device! Constraints: 44100, 22050 or 11025Hz.

Audio device: <none>
Audio capabilities:
(matrix of [S]tereo or [M]ono support for sample format and rate in Hz)
        | s16 | u16 | u8 | s8 | ulaw | alaw |
 --------------------------------------------------------
  8000 | | | | | | |
 11025 | | | | | | |
 12000 | | | | | | |
 16000 | | | | | | |
 22050 | | | | | | |
 24000 | | | | | | |
 32000 | | | | | | |
 44100 | | | | | | |
 48000 | | | | | | |

xmms, xine, amarok etc., nothing works

Gutsy l-u-m commit 98a99a6393a333db61f6525de416fd80aa6f550e

Create a new user and see if the new user has sound. If the new user has sound then I had a similar problem after an upgrade and the fix was to delete/rename the asoundrc and asoundrc.asoundconf.conf files in my own home directory and sound came back immediately.

They are hidden files.