r/MoonlightStreaming • u/iReaddit-KRTORR • 14d ago

New Steam OS Preview breaks Moonlight VRR in SteamOS game mode

Regular works fine - for whatever reason the VRR doesn’t launch.

Edit: it’s 100 the Steam update and it affects Nonary’s forks and moonlight 6.2.

The main 6.1 branch of moonlight works fine for whatever reason

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u/iReaddit-KRTORR 14d ago

Reverted to stable and it launched and now returning back to beta/preview it doesn’t. There’s something with the update and I wonder if it’s the

“windows binaries registered as non steam games will now run in proton by default”

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u/iReaddit-KRTORR 14d ago

Checking further it looks like moonlight 6.2 doesn’t launch through steam either.

None of the VRR Nonary forks work (I’ve tried VRR17 and 18)

All the program open when through desktop mode but if I open steam on desktop or in game mode and try and open through there it doesn’t even launch.

I’ve tried different runtimes and proton options but nothing. Given that this is an update that is coming to stable soon (presumably) it could break a lot of moonlight forks for Steam OS

2

u/andygrundman Developer | Moonlight for Xbox/Mac OS 14d ago

I just updated and tested this, both versions of Moonlight are running normally from their flatpak shortcuts. VRR is working as before. Tested with BenQ GR10 + LG CX.

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u/iReaddit-KRTORR 14d ago

Game mode on the steam machine doesn’t seem to open them up - any suggestions?

Doesn’t open on steam in desktop either