PCM2902 Audio Codec only works on MONO

[987687]

I have a PCM2902 Audio Codec USB sound card that only works with mono on my desktop, but works perfectly fine with stereo input/output on my laptops. I've had this USB sound card for probably 10 years and never had an issue on linux until plugging it into my desktop today.

Laptop and desktop are both running up to date stretch with MATE desktop.

Below are pastebin links to the output of

Code: Select all

lsusb -v

Output from desktop
Output from laptop

The diff between the two files is simply the Bus and Device ID, which is to be expected between two different machines.

Code: Select all

< Bus 002 Device 008: ID 08bb:2902 Texas Instruments PCM2902 Audio Codec
---
> Bus 003 Device 003: ID 08bb:2902 Texas Instruments PCM2902 Audio Codec

Furthermore, I have screenshots from mate-volume-control, which is how I select what outputs/inputs I'm using. I could also use pavucontrol, which gives the exact same results.
Hardware configuration on desktop:


Hardware configuration on laptop:


Both computers run the same kernel version:

Code: Select all

 4.9.0-2-amd64 #1 SMP Debian 4.9.18-1 (2017-03-30) x86_64 GNU/Linux

Why is the desktop not showing Analog Stereo Duplex?

[pylkko]

Can you say what kernels the two machines are on and what kernel modules are loaded? Are you using Pulseaudio or only alsa?

[987687]

Can you say what kernels the two machines are on and what kernel modules are loaded? Are you using Pulseaudio or only alsa?

Kernel is listed at the bottom of the OP. I'm using pulseaudio, I will also note that this card (I have two (they both exhibit the same issue)) works perfectly fine on a raspberry pi with pulseaudio. It's the front end to my media server... I digress.

Modules in use on the desktop

Modules in use on the laptop