Possible alsa bug around USB drivers

[Steven Skeard]

Hey all,

The last few weeks I've been plagued by inconsistent audio on my PopOS
20.10 desktop. Sometimes on boot everything would be fine, but other
times I would have no working audio and only dummy devices in the
audio menus. I eventually found that if I specify the modprobe order
so that the USB driver (eg. for my webcam) loads after the onboard
motherboard driver, that audio will work consistently.

Here are the related links:
- Reddit thread where I posted the original problem and the solution:
https://www.reddit.com/r/pop_os/comments/lmvbj3/audio_not_working_after_upgrading_computer/
- A related thread where it sounds like an arch user has the same
problem: https://bbs.archlinux.org/viewtopic.php?id=260373
- The alsa info I uploaded while under the effects of the problem:
http://alsa-project.org/db/?f=a23ccbb818fec6eaf08b032504eac5d5d8a30589

I'm not really sure where this problem originated but I figured you
guys might be able to point me in the right direction if it is not an
alsa problem.

I don't think I messed with the original alsa-base.conf but I suppose
my memory could be failing me here. I'm not sure where this file comes
from but I'm guessing it could be either a pop os, ubuntu, or alsa
default configuration?

Thanks,
Steven Skeard