Bug 372607

Summary:	kwin_core: Compositing is not possible
Product:	[Plasma] kwin	Reporter:	Yamashita Ren <lemaitre.dulotus>
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal
Priority:	NOR
Version First Reported In:	5.8.3
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Yamashita Ren 2016-11-18 00:43:37 UTC

Since a few days (or weeks), kwin compositing doesn't work anymore.
Here's the result when I try to start it from LXQt : https://zerobin.net/?8e84e46dad4b993c#Ts1MNKpLrbzJyROZZ+Nm/NQcVoix4BNGUAeQ8uKFu4A=
Here's the debug console from Plasma : http://pix.louiz.org/o/clCcv.jpeg
My GPU is a Nvidia Geforce GT 540M. Nothing seems wrong in the NVIDIA X Server Settings.

Didn't use my Archlinux boot for some time, I have no idea what caused this.
Compiz compositing seems to work fine.

Comment 1 Christoph Feck 2016-11-18 02:32:55 UTC

Please add the ouput of this Konsole command:

qdbus-qt5 org.kde.KWin /KWin supportInformation

(or just qdbus, if qdbus-qt5 is not found)

Comment 2 Martin Flöser 2016-11-18 06:41:19 UTC

Please also:
qdbus org.kde.KWin /Compositor compositingNotPossibleReason

Also please go to the compositor settings in systemsettings - there might be some information.

Comment 3 Yamashita Ren 2016-11-18 10:29:57 UTC

Here are the results :
1) https://zerobin.net/?de86220b380ddf7f#lFpQP736XZKTzUXI9bQIeU4YH0CCD9nboR9/Wslxy68=
2) https://zerobin.net/?c986fe53d745b3c9#LYbbvTCWz5B6zplNdo4uNxYuz0jmir3DSgO+dG0s+w4=


Got the same message as 2) in compositor settings.
Re-enabled the opengl detection and now it works.
I missed the "compositor settings" when I searched them prior to submitting the bug... Sorry for wasting your time :/
Thanks for your help both of you !