Fonts are blurry under fractional scaling in Wayland/Ubuntu

[ErmesWalter]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When I enable fractional scale 1.5, Cursor IDE has blurry fonts, mouse pointer becomes blurry when over Cursor window.

Ubuntu 24.04
Wayland

At the same time VS Code has sharp fonts when started code --ozone-platform=wayland.

Steps to Reproduce

Start Ubuntu/Wayland session on Ubuntu.
Open display settings, enable fractional scaling, set scale=150%.
Start Cursor.

Expected Behavior

Fonts should look crisp as always.

Operating System

Linux

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.19
VSCode Version: 1.105.1
Commit: 39a966b4048ef6b8024b27d4812a50d88de29cc0
Date: 2025-11-21T22:59:02.376Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Linux x64 6.14.0-35-generic

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. This is a known issue with Electron apps on Wayland when using fractional scaling.

Since you mentioned that VS Code works correctly with --ozone-platform=wayland, try launching Cursor the same way:

cursor --ozone-platform=wayland

To make this permanent, you can:

Edit the Cursor desktop launcher file (usually in ~/.local/share/applications/ or /usr/share/applications/)

Modify the Exec= line to include the flag: Exec=cursor --ozone-platform=wayland %U

Let me know if this resolves the blurry font issue. I’ll also inform the team so Cursor can enable Wayland support by default.

[ErmesWalter]

Of course I tried it. Did not help.

[ErmesWalter]

This one helped (important to run as AppImage):

Cursor-2.1.39-x86_64.AppImage --no-sandbox --ozone-platform=wayland --force-device-scale-factor=1