Ubuntu 11.04 No sound, missing hardware

Asked by Saurabh Bajaj on 2011-06-08

About three weeks back, after installing an Ubuntu upgrade, my sound hardware disappeared. Since, then I have no sound from my desktop. I have tried several fixes but with no success....

Any help is greatly appreciated......

Following is the output of the command: ubuntu-bug audio

ERROR: symptom script /usr/share/apport/symptoms/audio.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 56, in thread_collect_info
    package = symb['run'](report, ui)
  File "/usr/share/apport/symptoms/audio.py", line 192, in run
    (package, card, isOutput, jack) = ask_jack_and_card(report, ui)
  File "/usr/share/apport/symptoms/audio.py", line 22, in ask_jack_and_card
    cards = parse_cards()
  File "/usr/share/apport/symptoms/_audio_data.py", line 301, in parse_cards
    cards = add_pa_cards(cards, pactl_parsed)
  File "/usr/share/apport/symptoms/_audio_data.py", line 188, in add_pa_cards
    for pa_card in pactlvalues['Card'].itervalues():
KeyError: 'Card'

Question information

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Ubuntu alsa-driver Edit question
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Can you give the output of:

wget -O alsa-info.sh http://alsa-project.org/alsa-info.sh && bash ./alsa-info.sh


Driver version:
Library version:
Utilities version:

You have no ALSA driver version, which you need. Try:

sudo apt-get -y --reinstall install alsa-base alsa-utils; killall pulseaudio; rm -r ~/.pulse*

Then reboot, should be ok

These instructions have been given in the past by actionparsnip and may help here.

Saurabh Bajaj (saurabhfor02) said : #4

Thanks for your reply. I ran those three commands, but still no sound hardware is detected....

I ran the alsa script again, and looks like still there is no ALSA driver version. Here is the new link: http://www.alsa-project.org/db/?f=cb73e2841ba221eabc76e25e6c56ec53c4ae67e9

Also, FYI, I noticed the below statements when I ran the above script. I though they might be useful in diagnosing the problem:

grep: /proc/asound/cards: No such file or directory
cat: /proc/asound/cards: No such file or directory
cat: /proc/asound/modules: No such file or directory
grep: /proc/asound/cards: No such file or directory
/sbin/alsactl: save_state:1519: No soundcards found...
cat: /tmp/alsa-info.tv0FWucEec/alsactl.tmp: No such file or directory


Saurabh Bajaj (saurabhfor02) said : #5


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