Bug 363230

Summary:	The sound rises to the maximum in KDE to receive system notifications
Product:	[Plasma] plasmashell	Reporter:	Cristian Betancur <cristian-9401>
Component:	Notifications	Assignee:	Martin Klapetek <mklapetek>
Status:	RESOLVED NOT A BUG
Severity:	major	CC:	andrewnkde, kde, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.4.3
Target Milestone:	1.0
Platform:	Debian testing
OS:	Linux
URL:	https://deblinux.wordpress.com/2014/02/12/solucion-el-sonido-se-sube-al-maximo-en-kde-al-recibir-notificaciones/
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Cristian Betancur 2016-05-18 16:30:24 UTC

Hi

When system notifications appear, the sound rises to maximum. I reviewed this blog (in Spanish language) where it explains what is the problem. https://deblinux.wordpress.com/2014/02/12/solucion-el-sonido-se-sube-al-maximo-en-kde-al-recibir-notificaciones/

However, in my Debian Distribution and Plasma version, Notifications window doesn't seem to be like in the blog. 

KDE Plasma: 5.4.3
Qt: 5.5.1
Debian Kernel: 4.5.0-2-amd64

I need to know how to reduce sound volume in my laptop in system notifications, because this is very uncomfortable.

Thanks 

Reproducible: Always

Steps to Reproduce:
1. Go to System Preferences
2. Clic on Notifications
3. Appears a Notifications Window, but doesn't appears player options like in the blog.

Actual Results:  
Notifications window doesn't show sound volume options to system notifications

Expected Results:  
system notifications should have player options, and it should allow reduce system notification volume.

Comment 1 Aurelien Gateau 2016-05-22 16:08:51 UTC

This bug is not about Colibri, reassigning.

Comment 2 andrewnkde 2016-07-17 23:56:32 UTC

I've encountered this before. You need to modify your /etc/pulse/daemon.conf so that it says "flat-volumes = no" instead of flat-volumes = yes. Don't forget to uncomment that line.

Comment 3 David Edmundson 2016-07-21 14:15:44 UTC

Flat-volumes=no is the default in pulseaudio.

So not a Plasma problem.

Please reopen if that doesn't fix it.

Comment 4 David Edmundson 2016-07-21 14:23:30 UTC

Edit.

Apparently not:

flat-volumes scales the device-volume with the volume of the "loudest" application. For example, raising the VoIP call volume will raise the hardware volume and adjust the music-player volume so it stays where it was, without having to lower the volume of the music-player manually. Defaults to yes upstream, but to no within Arch.

Note: The default behavior upstream can sometimes be confusing and some applications, unaware of this feature, can set their volume to 100% at startup, potentially blowing your speakers or your ears. This is why Arch defaults to the classic (ALSA) behavior by setting this to no.