Public bug reported:
I am not able to reproduce this bug, but it seems to happen in conjunction with
some KDE dialog.
The only thing I can do is to switch back to the text mode console
(CTRL+ALT+F1) and run
DISPLAY=:0.0 kwin_x11 --replace &
What I get as output from this program is then:
Module 'org.kde.kwin.decoration' does not contain a module identifier
directive - it cannot be protected from external registrations.
QXcbConnection: XCB error: 8 (BadMatch), sequence: 1183, resource id:
10485765, major code: 42 (SetInputFocus), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 3292, resource id:
62914561, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 3296, resource id:
62914562, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 3300, resource id:
77594628, major code: 18 (ChangeProperty), minor code: 0
...
But I have no idea about the meaning.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: kwin-x11 4:5.5.5-0ubuntu1
Uname: Linux 4.14.15-041415-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Feb 1 10:43:49 2018
SourcePackage: kwin
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: kwin (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug third-party-packages xenial
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https://bugs.launchpad.net/bugs/1746701
Title:
Stops working unexpectedly
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