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Created by Nate Graham@ngraham

ThinkPad Yoga X1 audio devices are represented as separate devices rather than multiple sinks/sources of the same device

Summary

Lenovo ThinkPad Yoga X1 audio shows up as too many devices

environment

pa-info.txt

Steps to reproduce

  1. Have a Lenovo ThinkPad Yoga X1 laptop and install openSUSE Tumbleweed with KDE Plasma 5.19 on it
  2. Build PulseAudio 14 from source (git master)
  3. Install sof-firmware package, per https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Yoga_%28Gen_4%29
  4. Open pavucontrol app and go to Output Devices tab

What is the current bug behavior?

pavucontrol lists multiple output devices (each with a single port) rather than collapsing them into different ports of the same device, and lists multiple input devices rather than collapsing them into multiple ports of the same device. As a result, the app's display is cluttered up with devices that are not useful most of the time. This affects the KDE Plasma volume control applet which makes it annoying to use:

Too_many_devices

What is the expected correct behavior?

The different audio devices would be instead represented as multiple ports of the same input/output devices

Since I had to use sof-firmware to make this device's audio work, maybe this is a bug in how sof-firmware presents the hardware to PulseAudio? If so I will file a bug there instead.

Edited by Nate Graham
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