Master level not saved with ALSA

[dark-penguin]

With ALSA (no pulseaudio - this is the default for Debian Buster), the master level is not saved after a reboot. On my system, it is always set to 69%. With PulseAudio, the level is saved.

Apparently, there is no mixer for other (non-master) levels anymore - do I have to install something, or they are indeed no more?

Steps to reproduce the behaviour

Set the master level in the applet to 100% and reboot

Expected behaviour

The level is set to 100%

Actual behaviour

The level is set to 69%

MATE general version

1.20.4

Package version

1.20.4-2 (Debian Buster repos)

Linux Distribution

Debian Buster