Bug 494910 - Screen listed multiple times
Summary: Screen listed multiple times
Status: RESOLVED FIXED
Alias: None
Product: KScreen
Classification: Plasma
Component: common (show other bugs)
Version: 6.2.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-10-17 07:15 UTC by jan
Modified: 2024-12-13 13:38 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Display configuration showing "ghost" screens (66.52 KB, image/png)
2024-10-17 07:15 UTC, jan 		Details
Brightness applet showing duplicate entries (38.68 KB, image/png)
2024-10-17 07:16 UTC, jan 		Details
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Description jan 2024-10-17 07:15:39 UTC 
Created attachment 174930 [details]
Display configuration showing "ghost" screens

SUMMARY
Display configuration and brightness applet show the same screen multiple times (see attachments).

STEPS TO REPRODUCE
1. Attach external screen
2. Open display configuration
3. Open Devices drop-down menu

OBSERVED RESULT
Drop down menu shows additional unnamed screens. Brightness applet sometimes does, too.

EXPECTED RESULT
One entry per device.

SOFTWARE/OS VERSIONS
Operating System: RebornOS Linux (Arch Linux)
KDE Plasma Version: 6.2.0
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.3
Kernel Version: 6.11.3-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 14 × Intel® Core™ Ultra 7 165U
Memory: 30,5 GiB of RAM
Graphics Processor: Mesa Intel® Graphics
Manufacturer: Dell Inc.
Product Name: Latitude 7450

ADDITIONAL INFORMATION
None
Comment 1 jan 2024-10-17 07:16:32 UTC 
Created attachment 174931 [details]
Brightness applet showing duplicate entries
Comment 2 Benjamin Dedieu 2024-10-17 12:08:35 UTC 
I also have the bug since the multi screen brightness control has been implemented in 6.2.0. After unplugging the HDMI port, the internal display is shown 3 times in the applet. 
(I precise that I unplugged the HDMI cable during suspend, and I opened my laptop lid afterwards.)
In Fedora KDE 6.2.0.
Comment 3 Nate Graham 2024-12-12 19:42:08 UTC 
The ghost screen was a kernel bug IIRC. It's been a month; have you still been seeing this recently with newer kernel version?
Comment 4 Benjamin Dedieu 2024-12-13 00:49:11 UTC 
(In reply to Nate Graham from comment #3)
> The ghost screen was a kernel bug IIRC. It's been a month; have you still
> been seeing this recently with newer kernel version?

I have not seen the bug for a few weeks either. I think it has been fixed.
Comment 5 jan 2024-12-13 13:38:27 UTC 
I don't see any "ghost monitors" anymore, either.