I'm currently using Ubuntu 25.04, and there's a problem that's been bothering me: the system's volume adjustment doesn't work. When I slide the volume slider, the actual volume of my USB speaker doesn't change - unless I turn the volume down to 0, muting works fine.
I can see that my USB speaker has two PCMs in alsamixer - PCM and PCM 1. Only adjusting the volume of PCM 1 has an actual effect. I suspect that the system's volume operation is on PCM, so it doesn't work.
I looked up some information and learned that Ubuntu now uses pipewire to control the volume. But I don't know how to verify my conjecture or how to fix this problem. Can someone help me?
I looked up some information and learned that Ubuntu now uses pipewire to control the volume. But I don't know how to verify my conjecture or how to fix this problem. Can someone help me?
Asked by Hans0924
(1 rep)
Jun 17, 2025, 02:04 AM