Please may you run,
apport-collect 2146956
If this was working for you in Noble, then I'm curious what has caused
it to regress. I suspect there's something is going wonky due to the
large volume range reported from that USB DAC (-100dB, 0).
Looking through how the volume is managed from the gnome-shell volume
control into pipewire, it all looks reasonable. In the ALSA layer I can
see some room for quirks, but we'd have to take this upstream to get a
confirmation there.
In the meantime, can you try this workaround?
Create ~/.config/wireplumber/wireplumber.conf.d/alsa-soft-mixer.conf
with,
monitor.alsa.rules = [
{
matches = [
{
device.name = "alsa_output.usb-E-MU*"
}
]
actions = {
update-props = {
api.alsa.soft-mixer = true
}
}
}
]
Ensure the PCM volume of the DAC is at 100% in alsamixer, and restart
the daemon,
systemctl --user restart pipewire{,-pulse}{.service,.socket}
wireplumber.service
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https://bugs.launchpad.net/bugs/2146956
Title:
Volume slider is useless again
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