Some things I've noted over the last week:
lspci -v | grep -i audio
03:00.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 [Oxygen HD Audio]
and modinfo snd_oxygen shows the description as
C-Media CMI8788 driver
Those correctly show the driver version.
But, the content of cat /proc/asound/card0/oxygen (and /proc/asound/DSX/oxygen ... same card) shows
CMI8787
WM8776
WM8766
No mention of CMI8788.
And PulseAudio ... according to pactl list sources, there are 4; two are idle, two are running, and this regardless whether something is playing or not:
Source #0
State: IDLE
Name: alsa_output.pci-0000_03_00.0.analog-surround-71.monitor
Description: Monitor of CMI8788 [Oxygen HD Audio] (Xonar DSX) Analog Surround 7.1
Source #1
State: IDLE
Name: alsa_input.pci-0000_03_00.0.iec958-stereo
Description: CMI8788 [Oxygen HD Audio] (Xonar DSX) Digital Stereo (IEC958)
Source #2
State: RUNNING
Name: rtp.monitor
Description: Monitor of RTP Multicast
Source #3
State: RUNNING
Name: combined.monitor
Description: Monitor Source of Simultaneous output to CMI8788 [Oxygen HD Audio] (Xonar DSX) Analog Surround 7.1
Sources #0 and #1 are my card and physical location...
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