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The master volume keeps changing while I'm listening on youtube music in the browser. The OS is Debian Jessie. I adjusted the volume in the GUI and using the terminal (with "amixer set Master 40%") and it later changed repeatedly regardless the way I've changed it previously. There are no other applications running besides the browser.

Rui F Ribeiro
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0ana
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1 Answers1

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If pulse audio is the default and applications are changing it, you may need to fix that. Check these two config files for "flat-volumes"

/etc/pulse/daemon.conf 

~/.config/pulse/daemon.conf

If it exists and is not flat-volumes=no, change it to be no. This may solve the issue. I would suggest adding more info...does the volume change when you reboot?, etc

number9
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    The problem persists after reboot. I did not know what other information was relevant and didn't want to fill the question with useless clutter. I've changed the "/etc/pulse/daemon.conf" file by setting "flat-volumes" from "yes" to "no". There was no "~/.config/pulse/daemon.conf" file. Thank you so much for your answer. I would like to give it some time before marking it as correct, since the issue manifests intermittently. – 0ana Jan 05 '17 at 14:35
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    Sorry, this doesn't seem to be the answer. After all this time, the problem showed up again, despite having `flat-volumes=no` in `~/.config/pulse/daemon.conf` and `vim /etc/pulse/daemon.conf`. The volume gets muted after a random time interval (usually a few seconds) after I change it back to what I want it to be. – 0ana Feb 16 '17 at 08:13