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How do I change the way Ubuntu adjusts my volume mixer levels?

Pulseaudio's default volume slider doesn't work well with my audio card: when I change the volume (through the volume icon or the keys on my keyboard), for the first 50% the PCM volumes gets adjusted and for the next 50% the master one.

This change happens in big increments of ~20%. The changes to PCM barely affects the volume level, while the Master slides does.

This makes the volume slider rather unusable: it's either way too low, or too loud and I can't set it properly.

Is there a way, preferably through pulseaudio and not by rebinding my keys to use amixer (as suggested in another post here) to only change the master volume without ever touching PCM?

I know you can play around with the /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common file to achieve that effect, but this does not seem to be the proper way to change this: the change will get reverted next time pulseaudio gets updated.

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marked as duplicate by belacqua, Eliah Kagan, Jorge Castro, RobotHumans, jokerdino Aug 24 '12 at 3:12

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

After some more searching I found the following: How do I change the way Ubuntu adjusts my volume mixer levels?

The solution mentioned there worked for me.

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