4

I suspect that the volume of pulseaudio is off so I want to use amixer to turn it up from the command line. Can I do this? The amixer syntax is a bit confusing.

9

I use this:

mute/unmute:

amixer -q -D pulse set Master toggle

Raise volume:

amixer -q -D pulse set Master 5%+ unmute

Lower volume:

amixer -q -D pulse set Master 5%- unmute

-D pulse: to make sure we are using pulseaudio (optional)
unmute: so we do not accidentally raise the volume in muted state and be surprised when unmuting

0
0

Try these, for example:

amixer set Master 5%+ -q

amixer set Master 5%- -q

... and experiment with other percentages.

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