Latest maintainer comment ·
kisak-valve · 2026-07-10 ·
#3773Hello @pppbb, please add [`PROTON_LOG=1 %command%`](https://github.com/ValveSoftware/Proton#runtime-config-options) to the game's launch options, reproduce the regression, and attach the generated $HOME/steam-$APPID.log to this issue report as a file. (Proton logs compress well if needed.) Also, please copy the contents of Steam Runtime Diagnostics from Steam (`Steam` -> `Help` -> `Steam Runtime D...
#3773 · 735 comments ·
opened 2020-04-15 · last comment 2026-08-04 by darshi1337
comment by
gardotd426 · 2021-09-03 ·
view ·
github ... reason
You have to enable DLSS with an environment variable in the launch options in Steam.
`
PROTON_ENABLE_NVAPI=1`
... Ultra Nightmare except Texture Pool Size on High.
>
PROTON_ENABLE_NVAPI=1
That doesn't do anything but maybe because ...