Bug 507618

Summary: [Wayland] Overview effect in Wayland does not show window previews unless the window is clicked and held
Product: [Plasma] kwin Reporter: Dvorak <dvorakfanbutqwertyuser>
Component: effects-overviewAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: kdedev
Priority: NOR    
Version First Reported In: 6.4.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=450252
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Active bug with two windows opened (but only showing one, wich is the one being held)

Description Dvorak 2025-07-29 00:36:21 UTC
Created attachment 183615 [details]
Active bug with two windows opened (but only showing one, wich is the one being held)

STEPS TO REPRODUCE

    Start a KDE Plasma Wayland session

    Open multiple applications on a desktop

    Trigger the Overview effect (via hotkey or gesture)

OBSERVED RESULT

    Windows do not display their previews in Overview mode

    Previews only appear when a window is clicked and held with the mouse

    When the mouse button is released, the preview disappears again

EXPECTED RESULT

All open windows should display their previews correctly when Overview is activated, without needing to click or hold them.
SOFTWARE/OS VERSIONS

    Linux/KDE Plasma: Arch Linux

    KDE Plasma Version: 6.4.3

    KDE Frameworks Version: kded6 6.16.0

    Qt Version: QMake version 3.1
Using Qt version 5.15.17 in /usr/lib

    Graphics Platform: Wayland

    GPU: NVIDIA RTX 3080

    Drivers: nvidia-dkms (latest from Arch repos)

ADDITIONAL INFORMATION

Using Wayland session with proprietary NVIDIA drivers

Not a deal-breaker, but persistent and reproducible

No crash, just incorrect rendering in Overview effect
Comment 1 TraceyC 2025-08-01 19:56:17 UTC
I'm not able to reproduce this on git-master
Frameworks 6.18.0
Qt 6.9.1

Also not with Plasma 6.4.3
KF 6.16.0
Qt 6.9.1

This looks like the same symptom as bug 450252. Vlad said this would be a QtQuick bug.

I noticed you mentioned
> Using Qt version 5.15.17 in /usr/lib

I recommend updating Qt and seeing if you can still reproduce this. If so, please set this back to REPORTED. Thanks.
Comment 2 Bug Janitor Service 2025-08-16 03:46:34 UTC
๐Ÿ›๐Ÿงน โš ๏ธ 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 3 Bug Janitor Service 2025-08-31 03:47:41 UTC
๐Ÿ›๐Ÿงน This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.