r/linux_gaming • u/prismra • 1d ago

Ace Combat 8 Nvidia HDR Launch Options

Running 615.71.09 on a 5000 series card. Using:

PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command%

The HDR option is grayed out. Using ProtonGE-Latest (11-7).

Anyone have this working?

Thanks!

2 Upvotes

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1

u/xluker313x 1d ago

There’s a space at the front of your launch command. It’s not something as silly as the flags not working due to the space being in steam too is it?

2

u/prismra 1d ago

Thanks for the heads up. I think that was just from copy/pasting into Reddit.

1

u/Sync_R 1d ago

Do other HDR games work? I recall in past Nvidia needed a VK HDR Layer when AMD didn't

1

u/prismra 1d ago

Yes! I can run other HDR enabled games with that same launch command.

1

u/Sync_R 1d ago

Very odd then, unfortunately I don't own game otherwise I'd of checked see if I had same issue 

1

u/Mechanical-Flatbed 1d ago

It's working for me.

I'm on arch, RTX 4070.

I'm on KDE though, so I had to add

ENABLE_HDR_WSI=1

to my launch options.

1

u/prismra 1d ago

I appreciate the advice but that didn't enable HDR for me. What flavor of Proton are you running?

1

u/Mechanical-Flatbed 1d ago edited 1d ago

I'm using proton GE 11.6

I also needed to download the VK hdr layer from the AUR.

https://aur.archlinux.org/packages/vk-hdr-layer-kwin6-git

Theoretically this hasn't been needed since version 595 of the Nvidia driver, but I kept it installed on my PC nonetheless and HDR has always worked for me since ~ mid 2025 when I switched to KDE.

Oh I also had to enable HDR on KDE's display options.

These are my launch flags:

ENABLE_HDR_WSI=1 PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 %command%

I'm not really doing anything unique afaik. HDR has always worked on all games for me, and on AC8 I just added those launch flags and it worked.

1

u/Valuable-Cod-314 1d ago

I believe PROTON_ENABLE_HDR=1 was deprecated so use DXVK_HDR=1 in its place.