DLAA DLSS Injection Mod under Linux howto

[rimaille]

I went toward several steps to make the DLSS/DLAA injection to work under linux. Here's what i did, if that can help someone.

First, there's my setup :
rx9060xt 8gb with triple screen, archlinux with vanilla kernel, kde plasma/wayland, proton-ge, gamemode, dmemcg-booster, gamescope, lsfg-vk-git, optiscaler.

Setup agnostic (beside running on linux) steps :

1. How to load the plugin :
   On the steam game launch options, WINEDLLOVERRIDES="dinput8.dll=n,b" %command%
   This make proton use the plugin dll first, and if loading fails, it use builtin then.

2. ETS2 : plugin crash with Unhandled exception: page fault on read access to 0x0000000000000008
   Backtrace:
   0 msvcp140 (+0x12618)
   1 msvcp140 (+0x128d8)
   2 dinput8 (+0x72e31)
   3 dinput8 (+0x61fd5)
   Solution : I installed vcrun2026 via protontricks (via the gui, then select game prefix, install a windows DLL or component, vcrun2026, then microsoft installer launch.) The dll included in wine/proton does not work with the plugin, but only on ETS2, ATS is fine.

3. ETS2/ATS : shader compilation fail under proton/wine
   In the log 29 failed out of 42 shaders, with errors like Method 'GetDimensions' is not defined on type 'RWTexture2D', InterlockedAdd/Load4 on RWByteAddressBuffer, and isnan/isfinite “not defined”.
   The mod compiles its HLSL at runtime through D3DCompile in d3dcompiler_47.dll (it’s a static import in the shipped DLL). Under Proton that DLL is Wine’s builtin one, which uses the vkd3d HLSL compiler.
   Solution: protontricks <game_id> d3dcompiler_47
   game_id is 227300 for ets2 and 270880 for ats

Enjoy !

Hardware specific setup :

As i have a 8gb card on a triple screen setup, with high/ultra graphics settings, i went on installing dmemcg-booster, by a valve developper, which improves vram management by prioritizing foreground applications, such as games, over background processes when video memory is under pressure. It make wonders.

As i have a triple 1080p screen setup, i had to use gamescope to extend display to 5760x1080 , and make use of plasma videowall script to make it fullscreen.

As i have an AMD card and there's no DLSS DLAA built in, i have to use translation layer by optiscaler with fakenvapi. The game think i have a nvidia, DLSS/DLAA is translated to FSR4.1. I choose to rename optiscaler.dll to winmm.dll to make the plugin could load with it's hook and not interfere with optiscaler's hook.

As i cant choose to play between an ugly game and a smooth game, i made the game run beautifully stable 45fps then lsfg-vk frame generation x4 with performance mode and flowscale 85% Make sure to use 2.0+ version, ideally git one, performance improvement is huge.

Lastly my full steam game launch commands, which are the same on ATS and ETS2 :
LD_PRELOAD="/usr/$LIB/libgamemode.so.0" WINEDLLOVERRIDES="winmm=n,b;dinput8=n,b" MESA_NO_ERROR=1 DISABLE_LAYER_MESA_ANTI_LAG=1 PROTON_USE_NTSYNC=1 MESA_VK_DEVICE_SELECT="1002:7590" MESA_SHADER_CACHE_SIZE=1G gamemoderun gamescope --force-grab-cursor --backend sdl -b -W 5760 -H 1080 -r 180 -- %command% -64bit -fast -nointro -no_steamvr -unlimitedlog -mm_pool_size 8192 -mm_max_resource_size 100 -mm_max_tmp_buffers_size 1000

Sorry this post is as messy as i'm, hope this help tho :)

[JRDevo]

can you paste your logs for us? i think it will give more info that can help, then ill make a fix for linux users too.