protonscr

MSFS2024: 3D mouse getting stuck in VR cockpits (SteamVR 2.15 and 2.15.6 Beta)

protonclosed
ValveSoftware/Proton#9617 · opened 2026-03-26 by ydutertre · updated 2026-03-26 · 1 comments · github
Yydutertre 2026-03-26 github

Compatibility Report

  • Name of the game with compatibility issues: Microsoft Flight Simulator 2024
  • Steam AppID of the game: 2537590

System Information

I confirm:

  • [ x] that I haven't found an existing compatibility report for this game.
  • [ x] that I have checked whether there are updates for my system available.

steam-2537590.zip

Symptoms

In VR, via Steam Link/Steam VR (using either Quest 3 or PfD MR). once in a plane cockpit (any plane), the mouse cursor is supposed to be able to slide across the 3D surfaces of the aircraft cockpit so the user can smoothly go to the controls or knobs or buttons that they need to turn or adjust or move (this is how it works under Windows 11 on the same PC, same versions, etc.).

However, in MSFS2024 with Proton-Experimental, the mouse cursor keeps getting stuck on invisible "walls" and it is extremely difficult (or even impossible) to move the cursor to the desired button or knob. A "workaround" is to move the mouse in circles at high speed like a maniac and hope the cursor ends up close to the desired button or knob. Another workaround is to use VR controllers instead, but this is less precise and is actually quite hard to manipulate knobs.

Reproduction

  • Launch Steam VR and connect to it from a VR headset (Steam Frame? :D) over Steam Link
  • Launch MSFS2024
  • Click the Start button
  • Use the Ctl+Tab keyboard shortcut to switch to VR
  • select Free flight. Select any aircraft (Cessna 172 works) and any airport and start a flight
  • Click the "ready" button. You are now in the cockpit.
  • Attempt to move the mouse around. You should hit invisible "walls" all over the place (vs perfectly smooth under Windows)
Kkisak-valve maintainer 2026-03-26 github

Hello @ydutertre, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/8255#issuecomment-4134370572.

Proton versions

Upstream links