Video in Midori changes Master Volume in OS

[Levi McCue]

My Operating system is Fedora 23 Workstation.

I will set my Master Volume to 10% then open up Midori. If i go to a website that plays a video and the video player defaults to 100% volume, my Master Volume will jump up to 100% (Max Volume).

The first time this happened, it scared me and my dog.... Apologizes may be required

I would assume that the video being played in Midori would be Scaled to the Master Volume.
 - for example, if i had my Master Volume set to 10%, then... Video Volume = Video Player Volume(%) * Master Volume(%) and would range from 0% to 10% when adjusting the volume on the video player.

[Paweł Forysiuk (tuxator)]

Midori does not manange audio by itself, in this case it is just a mere GUI over WebKit or/and Gstreamer. I would suspect Gstreamer here if you played HTML5 Video and if it was flash the same applies - Midori does not control the audio volume in any way. Can you check if this does happen when you run "midori --plain yourwebpage" perhaps? It would launch just basicaly WebKit and url input widget.

[Paweł Forysiuk (tuxator)]

It seems to be a bug/misfeature of pulseaudio, you can workaround it by disabling pulseaudio's flat-volumes.

/etc/pulse/daemon.conf

flat-volumes = no

Then there should be no unexpected change of the volume caused by WebKit/Gstreamer.

[Niora (naumovvladislav)]

Pawel, this does not helps.
If you:
1. Go to Youtube.com
2. Play video
>> it'l set system volume to that volume, which is specified in sound player.
3. Set sound as you need.
4. Press "stop", than press "play" again
>> it'l set system volume to that volume, which is specified in sound player.

It's very dangerous and critical bug.

If you have headphones without volume resistor (I have two such, they're very popular), than you can have permanent worsening of listening. I cannot use Midori because of this.
Also nobody will use Midori because he'll need to set system time hundreds of times.

I hope it'll be fixed one time.