Bug 506544

Summary: Display configuration effectively useless - shows error about gaps between displays but there is no way to edit the configuration
Product: [Applications] systemsettings Reporter: hengtime2k
Component: kcm_kscreenAssignee: kscreen-bugs-null <kscreen-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: david, kdedev, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.4.1   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=507703
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: I can't change the settings to fix the issue, and can't apply any potential change that would fix it.

Description hengtime2k 2025-07-03 18:03:51 UTC 
Created attachment 182905 [details]
I can't change the settings to fix the issue, and can't apply any potential change that would fix it.

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SUMMARY
Dell dock WD19 constantly struggling to show and controlling external displays. I'm using cachyos kde plasma on a lenovo thinkpad T480, connected to the dock that has 2 Asus V277U displays connected to it. In the display configuration, the windows for the external connected displays can't be selected and moved to close the gaps between displays.. that I didn't make. It appears that while booting into the OS, both monitors display until I sign in. Disabling the laptop screen allows me to see both displays, but for some reason, having all 3 displays enabled causes the issue shown in the image attached.

STEPS TO REPRODUCE
1. Plugging in the DisplayPort/USB-C cable into the thinkpad
2. 
3. 

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 TraceyC 2025-07-07 21:47:26 UTC 
Thanks for the bug report. Please add the following information, that was asked for in the template:

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version:
Comment 2 TraceyC 2025-07-07 21:48:54 UTC 
In the screenshot, there are 2 errors
"Gaps between displays are not supported"
"Couldn't apply display configuration: Implementaion error"

Screens shown:
Built-in screen, Acer V277U, Acer V277U E
Comment 3 Bug Janitor Service 2025-07-22 03:47:01 UTC 
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 4 TraceyC 2025-08-04 22:25:08 UTC 
This looks to be the same as bug 507702. i'll merge this report into that one. Thanks.

*** This bug has been marked as a duplicate of bug 507702 ***
Comment 5 TraceyC 2025-08-05 15:46:35 UTC 
*** Bug 507896 has been marked as a duplicate of this bug. ***