Flameshot preview appears blurry under fractional scaling

[f1lipe]

Flameshot Version

Flameshot v12.1.0

Installation Type

Flatpak from Flathub

Operating System type and version

Linux

Description

Hello there,

When using Flameshot under a fractional scaling setting 125%, the screenshot preview shown in the Flameshot editor appears blurry or aliased. However, the actual screenshot image — when saved or copied — is sharp and unaffected.

• Flameshot v12.1.0
• Gnome 48
• Wayland
• QT_SCREEN_SCALE_FACTORS=1.25

Sscreenshot preview:

Actual screenshot:

If I don't set QT_SCREEN_SCALE_FACTORS=1.25 the image is sharp on preview, but out of scale.

Any ideas to fix that?

Thanks!

Steps to reproduce

1. Run flatpak run org.flameshot.Flameshot gui
2. Select a rectangle
3. Image appears blurry or aliased

Screenshots or screen recordings

Sscreenshot preview:

Actual screenshot:

System Information

• 2 monitors
• Gnome 48
• Wayland

[dmchmk]

Hi! NixOS user here, double OP, I have same blurry experience, even without setting QT_SCREEN_SCALE_FACTORS it's no as crisp as other programs.

Flameshot from nixpkgs, 12.1.0 Command: script --command "env QT_QPA_PLATFORM=wayland flameshot gui" /dev/null Gnome 47 Wayland