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UI Unresponsive

anders130 shared this bug ago

Submitted

When running Space Engineers 2 VS2 on Linux using Steam Proton, the game itself runs smoothly and performs well in 3D gameplay.

However, the UI becomes extremely unresponsive, and the mouse cursor does often not align with clickable UI elements.

When opening any inventory or options menu:

Buttons highlight only after a long delay (500–1500 ms) and me wiggeling my mouse
The game acts as if the mouse is not where it visually appears
Selecting items requires slowly hovering until the UI “catches up”
The rest of the game (movement, rendering, FPS) is normal — only UI is affected

This makes inventory management almost unusable.

I attached a video showing the behavior.

System Information:

OS: Linux (NixOS 25.11)

Proton: Proton Experimental

GPU: AMD Radeon RX 7900 XT

Files:

Replies (2)

okenso ●

Same issues as you

Arch

Proton GE 10-26

GPU 40590

Everything else seems fine, but inventory, anything with menus really is delayed.

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Zefirth ●

Keen is not interested in supporting Linux at the moment it seems.

I installed and played SE2 on Fedora KDE yesterday without any issues and with exactly the same performance as in windows 10.

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okenso ●

Chatting on discord, someone else had my same issue, we both experience it with hyprland. Will try another DE and see if it goes away.

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