Bug 430387

Summary: Disabling compositor on startup removes all window buttons, title bar, etc. after reboot.
Product: [Plasma] kwin Reporter: Dan W <spifey>
Component: compositingAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED UNMAINTAINED    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 5.20.4   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Kwin settings
coredumpctl,txt

Description Dan W 2020-12-14 17:23:14 UTC 
SUMMARY
Disabling compositor on startup removes all window buttons after reboot.

STEPS TO REPRODUCE
1. Install Feren OS on KVM.
2. apt-get update && apt-get upgrade && apt-get dist-upgrade
3. Open compositor and untick Enable compositor on startup. Reboot

OBSERVED RESULT
Most if not all windowed apps display bars are gone.
The menu, title bar, minimize maximize close buttons are all gone.

EXPECTED RESULT
The menu, title bar, minimize maximize close buttons appear.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Feren OS
(available in About System)
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.76.0
Qt Version: 5.15.1
Kernel 5.4.0-58-generic


ADDITIONAL INFORMATION
Only after enabling the compositor on next reboot do they reappear.
Compositor is enabled and disabled after each reboot properly.
Comment 1 Dan W 2020-12-14 17:46:17 UTC 
Created attachment 134077 [details]
Kwin settings
Comment 2 Nate Graham 2020-12-16 22:04:08 UTC 
Sounds like KWin isn't running, or has crashed. I expect there will be a crash log somewhere, perhaps accessible using `coredumpctl` Can you attach it?
Comment 3 Dan W 2020-12-17 12:20:59 UTC 
Created attachment 134144 [details]
coredumpctl,txt

coredumpctl attached.
Comment 4 Nate Graham 2020-12-17 16:32:11 UTC 
Hmm, I don't see any kwin crash logs. can you verify whether or not kwin_x11 is running at all?
Comment 5 Dan W 2020-12-17 17:52:51 UTC 
kvm:~$ ps aux |grep kwin
kvm        1330  0.0  1.7 480296 71000 ?        Sl   07:15   0:01 /usr/bin/kwin_x11
Comment 6 Bug Janitor Service 2021-01-01 04:39:15 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 7 Dan W 2021-01-01 16:12:12 UTC 
kvm:~$ ps aux |grep kwin
kvm        1330  0.0  1.7 480296 71000 ?        Sl   07:15   0:01 /usr/bin/kwin_x11
Comment 8 David Edmundson 2023-09-06 10:38:35 UTC 
This bug was reported against an outdated version of KWin. We have made many changes since the. 
If the issue persists in newer versions can you reopen the bug report updating the version number.