Black Box for Tray Icon in KDE X11 at 4k Resolution

[robohappy]

Hello,

I have a visual bug where the tray icon is a black box but only during KDE X11 4K resolution.

This does not happen in:
KDE Wayland 4K
KDE X11 1080p

Below are screenshots of it working and not working.

KDE X11 4K

KDE X11 1080p

[C0rn3j]

Can you show System Settings -> About This System window?

[robohappy]

Can you show System Settings -> About This System window?

[C0rn3j]

Welp, I'll accept a PR for this if someone is willing to fix it, though I don't think it's going to happen since Plasma is dropping X11 support with the next major release at the latest.

[robohappy]

I found what causes it and a workaround. The black box is caused when the global scaling is set to 200%, if it is left at 100% the icon shows.

For the workaround, in a desktop file adding the variable env GDK_SCALE=1 to the desktop file in the line exec line resulting in Exec=env GDK_SCALE=1 sc-controller fixed the issue for me.