Whimsy
Published
Marvel Rivals
Tinker Steps:Custom Proton: proton-cachyos-slr_v3, Set launch options, Media Foundation DLL
DXIL_SPIRV_CONFIG=wmma_fp8_hack FSR4_UPGRADE=1 SteamDeck=1 game-performance %command%
Added AMD's official amdxcffx64.dll package to /home/user/.local/share/Steam/steamapps/compatdata/2767030/pfx/drive_c/windows/system32/ . DXIL_SPIRV_CONFIG=wmma_fp8_hack FSR4_UPGRADE=1 launch commands are used to activate FSR4 inside the game. Needs proton-ge 10.4 or Proton cachyos version 10 or higher.
Windowing:Activating Fullscreen
without slr_v3 version of proton-cachyos I couldn't open the game. the STEAMDECK=1 is also needed.
STEAMDECK=1 is only command needed for it to launch. I used Proton-cachyos 10.0+ slr_v3 variants, but Proton-Ge 10.4 also should support FSR4. Detailed instructions to set these up can be found from Github, Reddit and YouTube.
Custom Proton: proton-cachyos-slr_v3
Distro:CachyOS
Kernel:6.14.8-2-cachyos
RAM:32 GB
GPU Driver:4.6 Mesa 25.2.0-devel (git-bade93c447)
GPU:AMD Radeon (radeonsi, gfx1201, ACO, DRM 3.61, 6.14.8-2-cachyos)
CPU:AMD Ryzen 9 7945HX3D with Radeon Graphics
Custom Proton: proton-cachyos-slr_v3
Distro:CachyOS
Kernel:6.14.8-2-cachyos
RAM:32 GB
GPU Driver:4.6 Mesa 25.2.0-devel (git-bade93c447)
GPU:AMD Radeon (radeonsi, gfx1201, ACO, DRM 3.61, 6.14.8-2-cachyos)
CPU:AMD Ryzen 9 7945HX3D with Radeon Graphics
