I was able to correct my problem.  Not sure exactly what I did to correct it. I was following the steps from here: https://www.linuxquestions.org/questions/slackware-14/alsa-1-2-5-upgrade-er… which was a similar problem to mine.  Anyways, finally got there. On 8/24/21 4:27 PM, James D Freels wrote: > Hello, > > I am a long-time debian and TDE user, and just recently upgraded my > buster amd64 machine to bullseye.  As part of this upgrade, I also > switch from stable builds to the preliminary stable builds of TDE.  > For example, tdm-trinity is versioned to read this: > 4:14.0.11~pre26-0debian11.0.0+7 . 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.). > > I am not sure if this is a debian/11/bullseye problem of a TDE > problem, so I have cross-posted this help request to the debian-user > mailing list as well (without the TDE information since it is not > supported there). > > 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. >