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Re: problem with sound for bullseye upgrade on amd64: must be root for sound to work on my machine

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Thanks for responding Georgi,

I had already tried "alsactl init" earlier based on other advise found 
on the WWW.  However, I did not pay close enough attention because of 
error messages I get as shown below:

alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import 
hw:0 use case configuration -2
Found hardware: "CMI8786" "CMI8786" "CS4245 CMI8786" "0x1043" "0x8467"
Hardware is initialized using a generic method
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import 
hw:1 use case configuration -2
Found hardware: "USB-Audio" "USB Mixer" "USB046d:082c" "" ""
Hardware is initialized using a generic method
alsa-lib parser.c:260:(error_node) UCM is not supported for this HDA 
model (HDA NVidia at 0xfe9fc000 irq 49)
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import 
hw:2 use case configuration -6
Found hardware: "HDA-Intel" "Nvidia GPU 51 HDMI/DP" 
"HDA:10de0051,38422724,00100100" "0x3842" "0x2724"
Hardware is initialized using a generic method

I cannot find much about this message, nor how to correct it.

The alsamixer seems to work fine as expected and indicates I have the 
sound card active and should hear sound.

But, it only provides actual sound if I am root.

On 8/25/21 1:28 PM, Georgi Naplatanov wrote:
> Hi James,
>
> try to run:
>
> # alsactl init
>
> as root, reboot and adjust all channels with alsamixer or similar with
> your (non-root) user.
>
> Kind regards
> Georgi
>
> On 8/25/21 20:02, James D Freels wrote:
>> I have not received a response yet, but I am hoping.
>>
>> What I know:
>>
>> -sound works as root, not as user
>>
>> -snd_oxygen module (required driver for my card) is loaded, but I can't
>> verify what is loading it.  no messages in dmesg show it being loaded
>>
>> -since snd_oxygen is loaded, it makes sense that aplay works as root
>>
>> -pulse does not show the sound card, but does show the hdmi audio on my
>> nvidia card, and the microphone on my web cam.  Both are muted in
>> pavucontrol
>>
>> -big question:  why doesn't sound card get loaded by pulseaudio ?  How
>> can I force that
>>
>> -I am now going over every occurrence of a pulseaudio configuration file
>> on my system for a clue
>>
>> Any help appreciated.  Is there a good troubleshoot procedure for
>> debian/11/bullseye sound problems ?
>>
>>
>> On 8/24/21 3:05 PM, James D Freels wrote:
>>> Hello,
>>>
>>> I am a long-time debian user, and just recently upgraded my buster
>>> amd64 machine to bullseye.  Essentially everything works as expected
>>> so far.  However, one very nagging problem I currently have is that my
>>> sound does not work unless I am rooted.  For example, if I issue the
>>> command
>>>
>>> aplay bark.au
>>>
>>> where bark.au is a snippet sound file of a dog barking, it fails.
>>> However, if I issue the command
>>>
>>> sudo aplay bark.au
>>>
>>> it works fine.  Similar sound playing occurs with any sound-playing
>>> app.  For example mpg123, vlc, etc., all require a sudo or be logged
>>> in as root to work.
>>>
>>> I have looked all around the WWW to try to find a solution to this
>>> problem.  The most common solution is to make sure that user ids are
>>> in the audio group in the /etc/group configuration file. Of course, I
>>> have that, and have confirmed it.  This is not a brand new
>>> installation after all, but an upgrade.
>>>
>>> Other common remedies I have tried are to fiddle with the pavucontrol
>>> and alsamixer settings.   My sound card does not show up in the
>>> pavucontrol (pulse doesn't find my sound card), but DOES show up in
>>> the alsamixer.
>>>
>>> I have also looked at the debian sound wiki, and other sources to try
>>> to fix this problem.
>>>
>>> Then, I remembered that I often used this form to learn about debian
>>> way back in the days when I first started using debian about 1994 or
>>> so.  Perhaps I can get some expert help.  Maybe a source I can go down
>>> a list of troubleshoot to nail this one down.  It is obviously a
>>> permissions issue (I also looked at device permissions, etc.).
>>>
>>> Just a bit puzzled and frustrated.
>>>
>>> P.S.
>>>
>>> BTW, my sound card is a C-Media, Xonor DG with chip set CMI8788 and
>>> uses the oxygen HD audio driver.
>>>
>>> lspci -v output corresponding:
>>>
>>> 05:02.0 Multimedia audio controller: C-Media Electronics Inc CMI8788
>>> [Oxygen HD Audio]
>>>          Subsystem: ASUSTeK Computer Inc. CMI8786 (Xonar DG)
>>>          Flags: bus master, medium devsel, latency 64, IRQ 22, NUMA node 0
>>>          I/O ports at e800 [size=256]
>>>          Capabilities: [c0] Power Management version 2
>>>          Kernel driver in use: snd_oxygen
>>>          Kernel modules: snd_oxygen
>>>
>>> Nothing has changed with the hardware, and I know the setup works.
>>> This seems to be a permissions/software issue.
>>>
>>>
>>>
-- 
Father, if you are willing, please take this cup of suffering away
from me. Yet I want your will to be done, not mine.

Luke 22:42 NLT

James D. Freels, Ph.D., P.E.
freelsjd@gmail.com
865-457-6742 (landline)
865-919-0320 (cell)

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problem with sound for bullseye upgrade on amd64: must be root for  sound to work on my machine James D Freels <freelsjd@gmail.com> - 2021-08-24 21:10 +0200
  Re: problem with sound for bullseye upgrade on amd64: must be root  for sound to work on my machine James D Freels <freelsjd@gmail.com> - 2021-08-25 19:10 +0200
    Re: problem with sound for bullseye upgrade on amd64: must be root  for sound to work on my machine Georgi Naplatanov <gosho@oles.biz> - 2021-08-25 19:40 +0200
      Re: problem with sound for bullseye upgrade on amd64: must be root  for sound to work on my machine James D Freels <freelsjd@gmail.com> - 2021-08-25 20:40 +0200
        Re: problem with sound for bullseye upgrade on amd64: must be root  for sound to work on my machine James D Freels <freelsjd@gmail.com> - 2021-08-25 21:10 +0200

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