Bug 505963 - KDE Plasma 6.4.0 - External monitors - crashed wine's apps
Summary: KDE Plasma 6.4.0 - External monitors - crashed wine's apps
Status: RESOLVED NOT A BUG
Alias: None
Product: plasmashell
Classification: Plasma
Component: "Manage Desktop and Panels" window (other bugs)
Version First Reported In: 6.4.0
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-06-22 10:50 UTC by sement
Modified: 2025-06-22 21:41 UTC (History)
0 users

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Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


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Description sement 2025-06-22 10:50:12 UTC
After upgrading to KDE Plasma 6.4, all applications running in the Wine environment, do not work. Some of them do not start, some of them start with a black window view, or start in such a way that you can't click anything in the application.
The problem also occurs in some flatpack applications, such as Microsoft Edge.

I only experience the problem when I have external monitors connected (usbc, MST). 



STEPS TO REPRODUCE
1. Update KDE Plasma from 6.3 to 6.4
2. Just run wine's apps


OBSERVED RESULT

I only experience the problem when I have external monitors connected (usbc, MST). When the laptop is disconnected from the external monitors, the problem does not occur.

EXPECTED RESULT

To make them work as in KDE Plasma 6.4

SOFTWARE/OS VERSIONS

OS: Fedora Linux 41 (KDE Plasma) x86_64
Host: 21HD0053PB (ThinkPad T14 Gen 4)
Kernel: Linux 6.14.11-200.fc41.x86_64


Display (PL2797Q): 2560x1440 @ 100 Hz in 27" [External]
Display (PL2797Q): 2560x1440 @ 100 Hz in 27" [External] *
DE: KDE Plasma 6.4.0
WM: KWin (Wayland)
WM Theme: Monochrome
Theme: Breeze (Monochrome) [Qt], Breeze [GTK3]
Icons: breeze-dark [Qt], breeze-dark [GTK3/4]
Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK3/4]
Cursor: breeze (24px)
Terminal: yakuake 25.4.2
Terminal Font: Fira Mono (9pt)
                                          CPU: 13th Gen Intel(R) Core(TM) i7-1355U (12) @ 5.00 GHz
                                          GPU: Intel UHD Graphics @ 1.30 GHz [Integrated]
                                          Memory: 4.60 GiB / 15.28 GiB (30%)
                                          Swap: 0 B / 24.00 GiB (0%)
                                          Disk (/): 316.02 GiB / 451.14 GiB (70%) - ext4
                                          Local IP (eth0): 192.168.0.20/24
                                          Battery (5B10W51867): 78% [AC Connected]
                                          Locale: pl_PL.UTF-8
Comment 1 sement 2025-06-22 21:41:02 UTC
Problem solved. I had the system variable set to: 
POWERDEVIL_NO_DDCUTIL=1