Problems with sound

Walter Dnes waltdnes-SLHPyeZ9y/tg9hUCZPvPmw at public.gmane.org
Thu Sep 27 00:32:19 UTC 2007


On Mon, Sep 24, 2007 at 07:18:28PM +0000, Tyler Aviss wrote
> Ahhh, good point. Does it work as root but not as a standard user
> (which would indeed be a permissions issue). However, I assumed that
> since it worked before this wasn't the case, but perhaps udev or
> something of that ilk decided to rewrite the permissions on various
> devices.
> 
> It might be an idea to check the permissions on some of these:
>   /dev/snd*
>   /dev/audio*
>   /dev/mixer*

[m3000][root][~] ls -al /dev/snd*
total 0
drwxr-xr-x  2 root root      180 Sep 26 19:04 .
drwxr-xr-x 15 root root    13580 Sep 26 19:04 ..
crw-rw----  1 root audio 116,  0 Sep 26 19:04 controlC0
crw-rw----  1 root audio 116, 24 Sep 26 19:04 pcmC0D0c
crw-rw----  1 root audio 116, 16 Sep 26 19:04 pcmC0D0p
crw-rw----  1 root audio 116, 25 Sep 26 19:04 pcmC0D1c
crw-rw----  1 root audio 116, 18 Sep 26 19:04 pcmC0D2p
crw-rw----  1 root audio 116,  1 Sep 26 14:58 seq
crw-rw----  1 root audio 116, 33 Sep 26 14:58 timer
[m3000][root][~] ls -al /dev/sound*
total 0
drwxr-xr-x  2 root root     160 Sep 26 19:04 .
drwxr-xr-x 15 root root   13580 Sep 26 19:04 ..
crw-rw----  1 root audio 14, 12 Sep 26 19:04 adsp
crw-rw----  1 root audio 14,  4 Sep 26 19:04 audio
crw-rw----  1 root audio 14,  3 Sep 26 19:04 dsp
crw-rw----  1 root audio 14,  0 Sep 26 19:04 mixer
crw-rw----  1 root audio 14,  1 Sep 26 14:58 sequencer
crw-rw----  1 root audio 14,  8 Sep 26 14:58 sequencer2
[m3000][root][~] ls -al /dev/audio
lrwxrwxrwx 1 root root 11 Sep 26 19:04 /dev/audio -> sound/audio
[m3000][root][~] ls -al /dev/mixer
lrwxrwxrwx 1 root root 11 Sep 26 19:04 /dev/mixer -> sound/mixer
[m3000][root][~]

  Even as root, mpg123 chokes

Directory: /home/misc/music/pop_standards/
Playing MPEG stream 1 of 1: Tennessee_Waltz_-_Patti_Page.mp3 ...
Title:   The Tennessee Waltz             Artist: Patti Page
Comment:                                 Album:
Year:    1950                            Genre:  Oldies
MPEG 2.0 layer III, 64 kbits/s, 22050 Hz joint-stereo
initialize_device(): cannot set hw params
audio: Success

  Since my troubles began with a kernel upgrade, I'll go back to the
previous version and see if that solves my problem.

-- 
Walter Dnes <waltdnes-SLHPyeZ9y/tg9hUCZPvPmw at public.gmane.org> In linux /sbin/init is Job #1
Q. Mr. Ghandi, what do you think of Microsoft security?
A. I think it would be a good idea.
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