Public bug reported:

Binary package hint: alsa-base

Hi,

I upgraded from 9.04 to 9.10 and had no issues with sound. Recently i selected 
mute and then unchecked it. Owing to this I lost sound. Since then i changed 
many other settings and tried but it was all in vain. I used alsamixer to 
ensure that there is nothing muted there. All my sound drivers are listed 
correctly. I do not have any idea as to what happened. 
Here is what i got using lsmod

Module                  Size  Used by
binfmt_misc            10220  1 
ppdev                   8232  0 
snd_hda_codec_atihdmi     4384  1 
snd_hda_codec_idt      66160  1 
iptable_filter          3872  0 
snd_seq_dummy           3556  0 
snd_seq_oss            33632  0 
snd_seq_midi            8320  0 
snd_rawmidi            27200  1 snd_seq_midi
snd_seq_midi_event      8448  2 snd_seq_oss,snd_seq_midi
snd_seq                61312  6 
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
ip_tables              21200  1 iptable_filter
snd_hda_intel          30176  2 
snd_hda_codec          96320  3 
snd_hda_codec_atihdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep               9448  1 snd_hda_codec
x_tables               25832  1 ip_tables
snd_pcm_oss            44096  0 
snd_mixer_oss          19008  1 snd_pcm_oss
snd_seq_device          8500  5 
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd_pcm                93544  4 snd_hda_intel,snd_hda_codec,snd_pcm_oss
uvcvideo               65260  0 
videodev               43360  1 uvcvideo
v4l1_compat            16644  2 uvcvideo,videodev
v4l2_compat_ioctl32    13344  1 videodev
snd_timer              25840  2 snd_seq,snd_pcm
joydev                 13088  0 
fglrx                2234552  31 
psmouse                57124  0 
serio_raw               6596  0 
amd64_edac_mod         26688  0 
snd                    77960  17 
snd_hda_codec_idt,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_seq_device,snd_pcm,snd_timer
i2c_piix4              11728  0 
edac_core              48876  1 amd64_edac_mod
shpchp                 37756  0 
soundcore               9088  1 snd
snd_page_alloc         10960  2 snd_hda_intel,snd_pcm
hp_accel               12480  0 
lis3lv02d               9312  1 hp_accel
input_polldev           4720  1 lis3lv02d
led_class               5256  1 hp_accel
lirc_ene0100            9444  0 
lirc_dev               13928  1 lirc_ene0100
lp                     11908  0 
parport                40528  2 ppdev,lp
usb_storage            66304  0 
r8169                  38884  0 
mii                     6368  1 r8169
video                  23612  0 
output                  3680  1 video

Should you need more information. Please let me know.

thanks,
Mustaq

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
     Assignee: Ubuntu Audio Team (ubuntu-audio)
         Status: New


** Tags: mute sound

** Changed in: alsa-driver (Ubuntu)
     Assignee: (unassigned) => Ubuntu Audio Team (ubuntu-audio)

-- 
Lost sound after mute in ubuntu 9.10
https://bugs.launchpad.net/bugs/542512
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