Bug 450079

Summary:	Sometimes an OSD showing the volume of the application appears when I pause/resume playback with middle-click on Media Player applet
Product:	[Plasma] plasmashell	Reporter:	Patrick Silva <bugseforuns>
Component:	Media Player widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	kde, nicolas.fella
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Neon
OS:	Linux
URL:	https://gitlab.freedesktop.org/libinput/libinput/-/issues/739
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Patrick Silva 2022-02-12 12:12:21 UTC

STEPS TO REPRODUCE
1. play a video in youtube with Firefox
2. repeatedly pause/play the video with middle-click (I use a touchpad, middle-click with two-fingers tap) on Media Player applet in system tray
3. 

OBSERVED RESULT
after middle-click on Media Player applet, playback pauses/resumes as expected and sometimes an OSD showing the volume of Firefox appears 

EXPECTED RESULT
volume OSD should never appear after middle-click on Media Player applet

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Graphics Platform: Wayland

Comment 1 Nicolas Fella 2022-02-12 13:17:27 UTC

It sounds like you are triggering a scroll, which then changes the volume and makes the OSD appear

Comment 2 Patrick Silva 2022-02-12 13:30:22 UTC

You are right. OSD does not appear when scrolling is set to 'Touchpad edges' instead of 'Two fingers'.
There is something wrong with my touchpad or libinput because frequently a webpage scrolls up in the internet browser when I try to open a link in background doing middle-click with two-fingers. This behavior occurs even on Gnome.

Comment 3 Patrick Silva 2022-02-12 13:54:00 UTC

The weird thing is that the volume level does change when the OSD appears.

Comment 4 Patrick Silva 2022-02-12 14:01:43 UTC

ops, if the volume is less than 100%, sometimes it increases 1% or 2% when the OSD appears.

Comment 5 Nicolas Fella 2022-02-13 01:46:38 UTC

It seems to me that Plasma works as expected then? Or am I missing something?

Comment 6 Patrick Silva 2022-02-13 20:06:19 UTC

Confirmed libinput bug.

https://gitlab.freedesktop.org/libinput/libinput/-/issues/739