New Fix for Wayland HiDPi Scaling Issue

[N0madical]

Flameshot Version

flameshot 12.1.0_1

Installation Type

User repository (AUR)

Operating System type and version

Manjaro Linux / Arch

Description

I've seen many posts about issues with HiDPi scaling of flameshot, with displays being shifted, weirdly scaled, or just glitched in general.

For me the normal 'reccomended' fix, QT_AUTO_SCREEN_SCALE_FACTOR=1.5 DID NOT work :(

I spent a while messing around with Flameshot, and I think I found a good solution that should work for most users running Wayland:

🌟 SOLUTION: 🌟

XDG_SESSION_TYPE=x11 flamesot gui

This works by setting the display compositor for specefically flameshot to be x11, and x11 scaling seems to work. Tested on both Manjaro/Arch and Void linux.

Steps to reproduce

Be on KDE Plasma Wayland with a HiDPi scaled screen, and run flameshot gui. Then run XDG_SESSION_TYPE=x11 flamesot gui to fix.

Screenshots or screen recordings

No response

System Information

Manjaro Linux w/ KDE Plasma & Wayland compositor, Flameshot installed from the Arch User Repository (AUR)

Void Linux w/ KDE Plasma & Wayland + Weston compositor, Flameshot installed from the xbps package library

[SoarinFerret]

Similar issue on Nixos / Sway, above fix worked for me.

[WickyPlays]

This is how I fixed it, based on your answer (KDE Wayland):

In the shortcut, use Command instead of directly linking application. Use XDG_SESSION_TYPE=x11 flameshot gui

From the Start menu, search for "Flameshot", right click on "Edit application". After the new window pop up, go to Application tab and you will see this picture. Change environment variable to this then you're done.
This helps running this app on x11 mode on startup as well. Pretty convenient though.