Fix Speaker Description of ThinkPad T14 AMD Gen 2 Under Ubuntu 24.04

Under Ubuntu, the internal speaker (and microphone) of the ThinkPad T14 AMD Gen 2 has by default an unfortunate name in the GNOME interface, such as Speaker - Family 17h/19h HD Audio. While Family 17h/19h refers to an AMD CPU generation, it's not a user-friendly description.

This issue stems from the default description of the audio device. Fortunately, we can overwrite this description using a WirePlumber configuration script.

Solution

1. Create a new WirePlumber configuration file:

   mkdir -p ~/.config/wireplumber/main.lua.d
   vim ~/.config/wireplumber/main.lua.d/51-alsa-rename.lua

2. Add the following Lua script to the file:

   rule = {
       matches = {
           {
               { "device.name", "equals", "alsa_card.pci-0000_07_00.6" },
           },
       },
       apply_properties = {
           ["device.description"] = "Internal",
       },
   }
   table.insert(alsa_monitor.rules, rule)

3. Save the file and exit the text editor.

4. Restart WirePlumber to apply the changes:

   systemctl --user restart wireplumber.service

After applying these changes, the audio device should appear as "Internal" in your sound settings.

Notes

• The device.name value (alsa_card.pci-0000_07_00.6) might differ on your system. To find the correct value, you can use the following command:

  wpctl status  # search for the device id
  wpctl inspect <device-id>

• You can customize the device.description value to any name you prefer.

• While WirePlumber seems to be shifting towards JSON-based configuration [see], for Ubuntu 24.04, only the Lua-based configuration worked for me.