Am 28.03.2017 um 13:06 schrieb Walid MOGHRABI:
> My DE is MATE 1.12.1 (Ubuntu 16.04 based).
> This is not the default ubuntu-mate-desktop meta package but a custom lightweight MATE install with individuals packages selected.
> Maybe I missed a needed package but which one ?

I'm anything but a MATE or PulseAudio expert, but googling for

mate pulseaudio save and restore volume level

returned this link:

<https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#index3h2>

and a pointer to look at the output of the command:
pacmd list-modules

- maybe you can track down the issue with your MATE installation like that?

Kind Regards,
Stefan Baur

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