Bug 368297

Summary:	Randomly I am left without windows decoration and other window-related function
Product:	[Plasma] kwin	Reporter:	0BADC0DE <vincenzo.romano>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Attachments:	qdbus org.kde.KWin /KWin supportInformation

Description 0BADC0DE 2016-09-05 20:35:36 UTC

Konsole reports:
KDE Frameworks 5.18.0
Qt 5.5.1 (built against 5.5.1)
The xcb windowing system

I couldn't see KDE version 5.18, so I selected unspecified.

I cannot reproduce it but it seems to me it is triggered when I open a "file selection" widget.
I cannot switch between windows with ALT+TAB, I cannot iconize or resize windows (no window widgets and handles).
If I am lucky I can use the "K" button to logout e log back in.
Otherwise I can switch to the system console with CTRL-ALT-F1, log in and run:

killall -9 kwin_x11; DISPLAY=:0.0 kwin_x11 --replace &> /dev/null &

The kwin_x11 process is not dead. I simply "refresh" it.

I filed this to Ubuntu which in turn asked me to file it to kde.org.
https://bugs.launchpad.net/bugs/1582246

I am available to help troubleshooting provided that precise directions are provided.


Reproducible: Sometimes

Steps to Reproduce:
1. I have no way to reproduce it.



It's quite annoying.

Comment 1 Martin Flöser 2016-09-06 06:07:32 UTC

Please provide the output of:
qdbus org.kde.KWin /KWin supportInformation

Comment 2 0BADC0DE 2016-09-06 06:14:11 UTC

Created attachment 100947 [details]
qdbus org.kde.KWin /KWin supportInformation

Comment 3 Martin Flöser 2016-09-06 08:49:22 UTC

Please try switching to the default decoration Breeze.

Comment 4 0BADC0DE 2016-09-06 17:45:55 UTC

I just did it.
Of course we need to wait some time (a couple of days should suffice).
So, stay tuned for the news.

Comment 5 0BADC0DE 2016-09-09 10:35:00 UTC

The use of the Breeze windows decorations didn't triggered the problem.
I don't know whether it's a bug in the Plastik window decorations (the one I was using previously) or it's about something that the Breeze is not using/doing.

Comment 6 Martin Flöser 2016-09-09 10:51:16 UTC

Most likely the well known issue with QtQuick. Marking as duplicate

*** This bug has been marked as a duplicate of bug 351839 ***