Bug 503961 - LibreOffice lags when inserting images or shapes under KDE Wayland, but works fine in X11 and Hyperland
Summary: LibreOffice lags when inserting images or shapes under KDE Wayland, but works...
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (other bugs)
Version First Reported In: 6.3.5
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-05-09 14:02 UTC by ha782166
Modified: 2025-06-26 03:48 UTC (History)
1 user (show)

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Description ha782166 2025-05-09 14:02:54 UTC 
When running KDE Plasma 6.3.5 with KWin on Wayland, LibreOffice (using the Qt6 backend) experiences severe lag when inserting large images or multiple shapes in documents.

This problem does not occur:

1. Under KDE Plasma X11

2. On other Wayland compositors like Hyperland

This suggests the issue lies with KWin's handling of LibreOffice's rendering under Wayland.
Comment 1 Vlad Zahorodnii 2025-05-12 08:12:08 UTC 
I cannot reproduce the issue. Please provide more detailed steps to reproduce. A screen recording would be great too.
Comment 2 Bug Janitor Service 2025-05-27 03:47:30 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 3 ha782166 2025-05-27 05:14:58 UTC 
These are two videos describing the mentioned problem, the one with X11 is
really smooth and it's probably the behavior you'd expect, on Wayland
though, it feels so slow and laggy as you can see.

This problem only appears in KDE Plasma on Wayland session, on Gnome
wayland or even Hyprland there's no such problem.

And I'm sorry for the delay, I was just a little busy with exams and all.

On Tue, 27 May 2025 at 07:10, Bug Janitor Service <bugzilla_noreply@kde.org>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=503961
>
> --- Comment #2 from Bug Janitor Service <bug-janitor@kde.org> ---
> 🐛🧹 ⚠️ 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!
>
> --
> You are receiving this mail because:
> You reported the bug.
Comment 4 Bug Janitor Service 2025-06-11 03:47:37 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 5 Bug Janitor Service 2025-06-26 03:48:08 UTC 
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.