Bug 463986

Summary: Kdenlive crashes with OS when maximizing
Product: [Applications] kdenlive Reporter: Serge <serge.matskevich>
Component: User Interface & MiscellaneousAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED WAITINGFORINFO    
Severity: crash CC: fritzibaby
Priority: NOR    
Version First Reported In: 22.12.1   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: generated report with backtrace by DrKonqi

Description Serge 2023-01-08 02:16:24 UTC
Created attachment 155096 [details]
generated report with backtrace by DrKonqi

Application: kdenlive (22.12.1)

Qt Version: 5.15.8
Frameworks Version: 5.101.0
Operating System: Linux 6.1.3-zen1-1-zen x86_64
Windowing System: X11
Distribution: "Arch Linux"
DrKonqi: 5.26.5 [KCrashBackend]

-- Information about the crash:
While I have a project opened in Kdenlive, if I fold the window (minimize it) and just do something else on a computer, e.g. watching onlive videos, after about 20 minutes or so when I try to go back to kdenlive, it crashes and sometimes crashes the OS with it. 
This can happen when the project is being rendered, or it can happen if Kdenlive is just opened and nothing is happening. 

Previously I did not have movit installed and it would log me out of my user session, then after a few seconds someimtes would reboot the computer. Sometimes it would just crash to the login screen and them mess up the KDE session.

After I installed movit and enabled GPU accelartion and tried to replicated this bug, the project just crashed and I am able to use internal tool to submit a bug report
In the system log I saw that there was a QT problem, saying "bad window":
Feb 01 20:02:50 Tiger kwin_x11[1033]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 49747, resource id: 41943844, ma>


The crash can be reproduced sometimes.
Comment 1 emohr 2024-01-03 11:02:57 UTC
Please try with the current Kdenlive AppImage version 23.08.4 to see if there are any packaging issues https://kdenlive.org/en/download/
Comment 2 Bug Janitor Service 2024-01-18 03:45:45 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 3 Serge 2024-01-22 20:26:09 UTC
(In reply to emohr from comment #1)
> Please try with the current Kdenlive AppImage version 23.08.4 to see if
> there are any packaging issues https://kdenlive.org/en/download/

I've tested packaged flatpack and normal instillation and it seems the bug is now gone, so it seems it was somehow resolved in the last year.