Bug 389514

Summary: internal screen frequently turns black
Product: [Plasma] KScreen Reporter: m.wege
Component: libkscreenAssignee: Sebastian Kügler <sebas>
Status: RESOLVED WORKSFORME    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 1.0.5   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description m.wege 2018-01-27 14:46:15 UTC 
I have a X220 with an external monitor connected to it via docking station. I have configured KScreen so that one screen extends the desktop. I am running KDE Neon Git stable.

Since a few weeks the following phenomenon appears frequently with no discernible pattern. Both screens turn black for a short moment. The external screen then shows what it has shown before. The internal screen remains black. The internal screen seems to still exist, because there is no reconfiguration. It appears that the panel and the other windows remain on the black screen. The shown configuration in KScreen remains unchanged. The problem is easy to fix temporarily by changing the KScreen config to something else for the moment and the reapplying the old one.
Installed version of Kscreen + libkf5screen7: 4:5.11.5+p16.04+git20180125.0934-0

I have tested if this might be a hardware problem by running Windows  for a few hours. There this did not happen.

I guess you need some more detailed info on my configs? Please let me know what commands I need to run.
Comment 1 Sebastian Kügler 2018-01-29 08:23:53 UTC 
Can you attach the following information to this bug-report, please? It'll help me to figure out what the problem may be.

https://community.kde.org/Solid/Projects/ScreenManagement#Debugging_Information

It would be very helpful if you could mark in kscreen.log where the blacking out occured, so I can clearly see what events triggered it.

Thanks!
Comment 2 m.wege 2018-02-03 10:37:03 UTC 
I am trying to provide the information, but I have problems doing that. I have followed the information provided in the link and created  the script, made it executable and started it. But  does not leave any new information in ~/.local/share/kscreen/kscreen.log The file existsed before, but the oldest information is 3 weeks ago.
Comment 3 Nate Graham 2022-11-07 20:55:22 UTC 
Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please see if you can reproduce the issue with Plasma 5.25 or 5.26?

If you can, please change the status to CONFIRMED when replying. Thanks a lot!
Comment 4 Bug Janitor Service 2022-11-22 05:12:46 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 5 Bug Janitor Service 2022-12-07 05:12:22 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now 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

Thank you for helping us make KDE software even better for everyone!