Master volume reset to 40% when logging out of desktop - a solution.

[Fernent]

After much searching I came across this solution to the relatively minor annoyance of the master volume being reset to 40% on logging out and back in, but not on reboot. This only happens with systemd.

https://unix.stackexchange.com/question ... ireplumber

and

https://wiki.debian.org/PipeWire#Device ... d_on_login

Note that the 'systemd-container' package is required; it's in the MX repo.

[CharlesV]

Actually, I had this happen to me a few days ago with a new computer. I found that removing the user from the audio group resolved this issue. ( This was SysVinit btw.)

[dreamer]

I can confirm that the solution in the original post (systemd-only) works. It addresses the root cause of the problem which seems to be that PipeWire starts when the display manager loads and neither lightdm nor SDDM are “PipeWire aware”.