UI elements scale weirdly with fractional scaling #1475

New Issue

MrUnknownDE · 2026-04-05T17:56:31+02:00

MrUnknownDE commented

2026-04-05 17:56:31 +02:00

Originally created by @dapetcu21 on 11/29/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

Linux

OS Version

Fedora 43 with KDE

Additional system information

Ryzen 5 3600
Radeon 6800 XT - RADV
MESA 25.2.7-3.fc43
KWin 6.5.3-1.fc43 (over Wayland)

Printer

Doesn't matter

How to reproduce

Install Orca Slicer via Flatpak from the website
KDE System Settings -> Display Configuration -> Scale set to 170% (100% or 200% looks fine)

Actual results

Font sizes and UI elements are scaled incorrectly:

Expected results

This is with 200% scaling, where UI elements are sized correctly:

Project file & Debug log uploads

log.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @dapetcu21 on 11/29/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) Linux ### OS Version Fedora 43 with KDE ### Additional system information Ryzen 5 3600 Radeon 6800 XT - RADV MESA 25.2.7-3.fc43 KWin 6.5.3-1.fc43 (over Wayland) ### Printer Doesn't matter ### How to reproduce 1. Install Orca Slicer via Flatpak from the website 2. KDE System Settings -> Display Configuration -> Scale set to 170% (100% or 200% looks fine) ### Actual results Font sizes and UI elements are scaled incorrectly: <img width="1530" height="1040" alt="Image" src="https://github.com/user-attachments/assets/d1caa065-af00-4066-95c5-b2789555dada" /> ### Expected results This is with 200% scaling, where UI elements are sized correctly: <img width="2572" height="1390" alt="Image" src="https://github.com/user-attachments/assets/5d299ad9-eb49-4fdc-a765-f3da338d9f8e" /> ### Project file & Debug log uploads [log.zip](https://github.com/user-attachments/files/23832985/log.zip) ### Checklist of files to include - [x] Log file - [ ] Project file ### Anything else? _No response_

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Reference: github/OrcaSlicer#1475