Bug 896933

Summary: Kmix - popping up of Unknown Application: Audio-volume-change stream
Product: [openSUSE] openSUSE Distribution Reporter: Ferdinand Galko <galko.ferdinand>
Component: KDE Workspace (Plasma)Assignee: E-Mail List <opensuse-kde-bugs>
Status: RESOLVED FIXED QA Contact: E-mail List <qa-bugs>
Severity: Normal    
Priority: P5 - None CC: forgotten_5bOUleMVRM, forgotten_b3T01WmZkI, galko.ferdinand, slacky2005, wbauer
Version: 13.2 Beta 1   
Target Milestone: ---   
Hardware: x86-64   
OS: Other   
Whiteboard:
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: kmix volum is not pavucontrol percent volume

Description Ferdinand Galko 2014-09-16 15:43:21 UTC
User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0

Kmix has still so strange behaviour during  change of main Built-in Audio Analog Stereo.
Unknown Application: Audio-volume-change stream always appears for a while and then disappears only during this change.

There is this behaviour in palel and in opened Kmix application.  



Reproducible: Always

Actual Results:  
Strange behaviour of sound volume control in KDE
Comment 1 Ferdinand Galko 2014-09-22 19:56:45 UTC
I can confirm this bug in 13.2 beta-release.

Poping up of another stream during changing of main stream in Kmix still appeares.
Comment 2 Forgotten User 5bOUleMVRM 2014-09-30 14:01:04 UTC
Same for me. When I grab the knob of the volume slider with the mouse, a third volume slider labeled "Unknown audio-vol" appears and the knob cannot be dragged.
Comment 3 Ferdinand Galko 2014-10-09 19:24:10 UTC
Confirmed. This bug is also in 13.2 RC1.
Comment 4 sidro ovidiu 2015-03-08 11:05:44 UTC
Confirmed. This bug is also in 13.2. 
Date: march 08 2015.
Comment 5 sidro ovidiu 2015-03-10 09:01:17 UTC
Created attachment 626041 [details]
kmix volum is not pavucontrol percent volume

Kmix report strange volume percent.
kmix 66%
pavucontrol 100%.
Comment 6 Forgotten User b3T01WmZkI 2015-04-13 23:46:36 UTC
I can reproduce this bug since I've installed openSUSE 13.2.
It is very annoying since you cannot drag the volume slider properly.
I'm using openSUSE 13.2 with the latest updates.

DATE: April 14 2015
Comment 7 Wolfgang Bauer 2015-04-14 08:07:06 UTC
(In reply to Luca D'Amico from comment #6)
> I can reproduce this bug since I've installed openSUSE 13.2.
> It is very annoying since you cannot drag the volume slider properly.

Disable "Volume Feedback" in KMix's settings.
Comment 8 Wolfgang Bauer 2015-04-14 08:28:04 UTC
PS: As I just noticed now, this is caused by openSUSE's patch to remove the event notification volume control.
I cannot reproduce it with an unpatched kmix.

So I'd strongly suggest to remove that patch.
Let's continue in bug#878685 though.

If you want to you can install kmix from here and verify if you still see the problem (would be nice to have a confirmation):
http://download.opensuse.org/repositories/home:/wolfi323:/branches:/KDE:/Current/openSUSE_13.2/
Comment 9 Forgotten User b3T01WmZkI 2015-04-14 18:37:56 UTC
(In reply to Wolfgang Bauer from comment #8)
> PS: As I just noticed now, this is caused by openSUSE's patch to remove the
> event notification volume control.
> I cannot reproduce it with an unpatched kmix.
> 
> So I'd strongly suggest to remove that patch.
> Let's continue in bug#878685 though.
> 
> If you want to you can install kmix from here and verify if you still see
> the problem (would be nice to have a confirmation):
> http://download.opensuse.org/repositories/home:/wolfi323:/branches:/KDE:/
> Current/openSUSE_13.2/


Thank you Wolfgang Bauer. I've intalled your rpm and now it seems ok.
I've a new slider called "Sounds of events" (or something similar), that is always present, is this correct?

By the way, this fix should be included in the next few updates.. I think that this will help a lot of people.
Comment 10 Wolfgang Bauer 2015-04-14 19:16:38 UTC
(In reply to Luca D'Amico from comment #9)
> Thank you Wolfgang Bauer. I've intalled your rpm and now it seems ok.
Thanks for the confirmation.

> I've a new slider called "Sounds of events" (or something similar), that is
> always present, is this correct?
Yes.
Its purpose is to allow you to control the volume of event notifications, i.e. the sounds that are played when a warning dialog pops up, when you try to close a dolphin/konqueror window with more than one tab, and so on.

openSUSE removed this slider with a patch since 13.1 as it apparently didn't work at all back then and the whole event notification volume control caused problems with PulseAudio (i.e. raising the overall volume to 100% whenever a notification was played).
Unfortunately, removing this slider apparently causes that other slider for the volume feedback to appear whenever you move the volume slider, i.e. a volume feedback sound is played. (KMix does show a new slider whenever an application is playing sound, this allows to control the volume for each application separately)

These other problems seem to be fixed now upstream, so there's no reason any more to remove that anyway.

A side-note: this "Volume Feedback" was disabled by default in 13.1/KDE 4.11. So it was no real problem back then.
Apparently the default has been changed upstream sometime between 4.11 and 4.14 and we haven't noticed. (personally I didn't use PulseAudio at all until two weeks ago and this is a PulseAudio-only feature)

> By the way, this fix should be included in the next few updates.. I think
> that this will help a lot of people.
It will be included in the next KDE update for 13.2 (KDE Applications 15.04 is going to be released tomorrow, an openSUSE update will take some time until it is released though), or it will be released as a separate update if there won't be a full KDE update any more (and for 13.1 as well).

See also bug#878685...
Comment 11 Bernhard Wiedemann 2015-12-15 13:00:23 UTC
This is an autogenerated message for OBS integration:
This bug (896933) was mentioned in
https://build.opensuse.org/request/show/348965 13.1 / kmix+kdebase4-runtime
Comment 12 Bernhard Wiedemann 2015-12-15 14:00:14 UTC
This is an autogenerated message for OBS integration:
This bug (896933) was mentioned in
https://build.opensuse.org/request/show/348975 13.2 / kmix+kdebase4-runtime
Comment 13 Tomáš Chvátal 2015-12-22 12:01:30 UTC
This should be also closed as fixed with the latest sr#s :)
Comment 14 Swamp Workflow Management 2015-12-29 12:11:22 UTC
openSUSE-RU-2015:2389-1: An update that has three recommended fixes can now be installed.

Category: recommended (moderate)
Bug References: 878685,896933,954531
CVE References: 
Sources used:
openSUSE 13.2 (src):    kdebase4-runtime-15.08.3-19.1, kmix-15.08.3-19.1
openSUSE 13.1 (src):    kdebase4-runtime-4.11.5-485.1, kmix-4.11.5-193.1