How To Set Up FSR on Astroneer With Proton on Linux

How To Set Up FSR on Astroneer With Proton on Linux
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My laptop of choice is the Framework 16 with no dedicated graphics. This means that I have to play at low framerates settings. With the magic of FSR which allows me to run the game at a lower resolution and use the gpu to upscale it I am able to get higher refresh rates on the same settings. Typically the process involves adding some settings in steam and making the game fullscreen and lowering the in-game resolution.

However Astroneer does not have a fullscreen mode. So we have to change some settings manually.

Install ProtonGE through ProtonUp-Qt
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Depending on your distribution it will be different, I use Fedora so I had to install it as a flatpak.

YOU WILL NEED TO CLOSE STEAM TO CONTINUE

Select Your Steam Package If Not Automatic
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This should select your steam version automatically but verify that it is the correct one.

Install The Latest ProtonGE Version
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Press Add Version

Select the most recent version of GE-Proton and press Install

Open Steam And Select Astroneer
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Click the settings button on the game and go to properties

Enable FSR
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This works for all games but under launch option add

WINE_FULLSCREEN_FSR=1 %command%

Change The Compatibility Tool
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Go to the compatibility tab and check Force the use of a specific Steam Play compatibility tool
Then select the version of GE-Proton you have

It should look like the following

Edit GameUserSettings.ini To Force Fullscreen
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Because Astroneer will not let us set fullscreen manually we have to force it with a file.

Find the file
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Go to Installed Files and press Browse…
Click back to steamapps
Open compatdata/361420/pfx/drive_c/users/steamuser/AppData/Local/Astro/Saved/Config/WindowsNoEditor/GameUserSettings.ini

Edit the following values
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Setting	What it does
`ResolutionSizeX`	The width of your monitor
`ResolutionSizeY`	The height of your monitor
`LastUserConfirmedResolutionSizeX`	Set this to the same as `ResolutionSizeX`
`LastUserConfirmedResolutionSizeY`	Set this to the same as `ResolutionSizeY`
`FullscreenMode`	`0` means exclusive fullscreen, `1` is borderless, `2` is windowed
`LastConfirmedFullscreenMode`	Set this to the same as `FullscreenMode`
`PreferredFullscreenMode`	Set this to the same as `FullscreenMode`

Here is my file for reference

ResolutionSizeX=1280
ResolutionSizeY=800
LastUserConfirmedResolutionSizeX=1280
LastUserConfirmedResolutionSizeY=800
WindowPosX=-1
WindowPosY=-1
FullscreenMode=0
LastConfirmedFullscreenMode=0
PreferredFullscreenMode=0

Launch The Game
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It should work if not send me an email below and I can update the article

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