Skip to content
Dusk Guide

Steam Deck issues

Steam Deck issues

Most Deck-specific bugs come from the Desktop-Mode-vs-Gaming-Mode split or from Steam Input layering on top of Dusk.

UPDATED 2026-05-104 minBeginner

No ROMs / no copyrighted assets

This independent guide does not host or link to game files. Use your own legally obtained copy.

Symptoms

  • Game runs in Desktop Mode but not Gaming Mode.
  • Controller maps are doubled or fight each other.
  • Performance is worse in Gaming Mode.
  • Battery drains faster than expected.

Likely causes

  • Steam Input intercepting events Dusk wants directly.
  • Wrong launch options string in Gaming Mode.
  • Graphics preset too high for the Deck's TDP.
  • Refresh rate cap not set, so the Deck targets 60 Hz unnecessarily.

First safe fixes

Try in this order

  • Test in Desktop Mode first; replicate the working setup in Gaming Mode.
  • In Gaming Mode → Properties → Controller → set as needed (start with Steam Input enabled).
  • Set FPS cap, refresh rate, and TDP from the Steam overlay quick menu.
  • Use the 'Battery' profile from /steam-deck for long sessions.

Still stuck?

Open the troubleshooting wizard for a different symptom or platform combination. If everything checks out and the issue persists, file a bug at the official Dusk project.

Reference slug: steam-deck-issues

Related guides