Bug 422535

Summary:	Plasma blcks acces to microphone for electron apps
Product:	[Plasma] plasmashell	Reporter:	Cyrille Dunant <cyrille.dunant>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED NOT A BUG
Severity:	grave	CC:	nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Cyrille Dunant 2020-06-06 12:39:44 UTC

SUMMARY

Electron apps -- in particular skype and MS Teams -- cannot see the webcam or microphone. This occurs under an x11 session, but not under a Wayland session. This behaviour does not occur under an xfce session, even when kwin_x11 (--replace) is used. Native apps don not seem affected

I have tried to disable the media-player applet, but this didn't change the result.

STEPS TO REPRODUCE
1. Launch a session
2. Launch skype/teams
3. No webcam/mic

OBSERVED RESULT

No webcam or mic.

EXPECTED RESULT

Should be webcam/mic

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: opensuse unstable KDE RPMs
(available in About System)
KDE Plasma Version: 5.18.90
KDE Frameworks Version: 5.71
Qt Version: 5.15

ADDITIONAL INFORMATION

Comment 1 Nate Graham 2020-06-11 03:43:53 UTC

Does the microphone appear visible in the Audio Volume system tray applet?

Comment 2 Cyrille Dunant 2020-06-11 08:20:28 UTC

I just tested again, after spending about a week on a wayland session because of this issue, and it looks like it's working again.

I don't know what was the problem.

Comment 3 Nate Graham 2020-06-11 12:41:43 UTC

Thanks.

Comment 4 Cyrille Dunant 2020-07-27 10:38:42 UTC

I have found the cause for the bug, and thought it would be useful info to pass on.

It's an issue with the X security: with xhost+, the apps work as expected.

Comment 5 David Edmundson 2020-07-27 12:47:07 UTC

That doesn't sound like there's anything wrong our side. Are you running apps as different users?

Please reopen if there's anything to indicate there is an issue with our software.

Comment 6 Cyrille Dunant 2020-07-27 12:48:57 UTC

I don't know there's a bug with kwin, but the defaults seem different than under icewm, for example, where xhost+ is not necessary. 

It's not necessarily a bug, but I thought you should know.