Bug 383787

Summary:	Notification volume slider jumps to zero after change
Product:	[Plasma] plasma-pa	Reporter:	tuxfusion
Component:	kcm	Assignee:	David Rosca <nowrep>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bugseforuns, kde, nate, plasma-bugs
Priority:	NOR
Version:	5.10.4
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:	https://commits.kde.org/plasma-pa/792248092d25512ef2fe37ff4c79c02242832626	Version Fixed In:	5.11
Sentry Crash Report:
Attachments:	debug

Description tuxfusion 2017-08-21 12:23:34 UTC

Notification sounds where always 0 or muted on this machine. I want to use them now. Increasing the volume slider of the notifications inside system settings makes the slider jump back to zero all the time. In that event no error is displayed and no error is printed in console. However, on loading of the module, there are quite some errors in the console. None of which showed a solution during research:

Errors:
https://pastebin.com/RzHjpd5v

Comment 1 Kai Uwe Broulik 2017-08-21 12:28:47 UTC

I experienced the same. Notification sounds immediately mute themselves against after touching the slider.

Comment 2 tuxfusion 2017-08-21 13:42:57 UTC

Update: I could fix the behavior with pavucontrol. When opening it, it showed "Notifications" muted. I unmuted it and raised the volume. Notification sounds now play and I can adjust the volume both from, systemsettings and pavucontrol. I have no idea why systemsettings was not able to alter the volume values and pavucontrol could.

Comment 3 David Rosca 2017-08-21 13:46:32 UTC

This should have been already fixed, see bug 367688.

I can't myself reproduce it.

Comment 4 Kai Uwe Broulik 2017-08-21 13:49:08 UTC

I reproduced it on Plasm 5.10.4, though. I'm also seeing the same issue with neon dev edition git master of a couple of days old.

Comment 5 David Rosca 2017-08-21 13:55:28 UTC

Created attachment 107423 [details]
debug

Can you apply this patch and send me the output when changing the volume?

Comment 6 Patrick Silva 2017-08-21 15:15:35 UTC

I confirm this bug on neon dev unstable.

Comment 7 Kai Uwe Broulik 2017-08-23 12:04:47 UTC

I unmuted, after that I moved the slider to 40%:

set volume 39637
write changes 0 false ""
set muted false
set volume 0
write changes 0 false ""
set muted true
write changes 0 true ""
set muted true

As you can see it sets volume to 0 again afterwards.

Comment 8 David Rosca 2017-08-23 13:00:39 UTC

Git commit 792248092d25512ef2fe37ff4c79c02242832626 by David Rosca.
Committed on 23/08/2017 at 12:59.
Pushed by drosca into branch 'master'.

StreamRestore: Always set channel count to 1

This is what pavucontrol is doing too.
FIXED-IN: 5.11

Differential Revision: https://phabricator.kde.org/D7485

M  +13   -14   src/streamrestore.cpp
M  +1    -2    src/streamrestore.h

https://commits.kde.org/plasma-pa/792248092d25512ef2fe37ff4c79c02242832626

Comment 9 Nate Graham 2017-09-24 14:01:54 UTC


*** This bug has been marked as a duplicate of bug 367688 ***