Hello!
I know many articles and such have been made similar to this one but sadly none of the solutions shown there seem to help 
The problem is just as the title says, gamescope refuses to work with steam regardless of what I try (different kernels, configurations, etc.). My best guess is that it might be due to my system using wayland and not x11.
Here is my specs (alongside the shown kernel I have also tried the latest and the cachyos-kernels from chaoticnyx)
Here is my current gaming.nix setup with suggestions from a friendly discord server.
{ config, inputs, pkgs, ... }:
{
environment.systemPackages = with pkgs; [
protonup-qt
protontricks
cabextract # Needed for ^
dxvk
vkd3d
wineWowPackages.full
winetricks
faudio
# Performance tools
gamemode
gamescope
mangohud
];
environment.sessionVariables = {
# Default 64-bit Wine prefix for modern games
WINEPREFIX = "$HOME/.wine";
WINEARCH = "win64";
OBS_VKCAPTURE = "1";
RADV_TEX_ANISO = "16";
# Explicit Wine paths for Winetricks / Protontricks (avoids unknown arch)
WINE = "/run/current-system/sw/bin/wine";
WINESERVER = "/run/current-system/sw/bin/wineserver";
};
hardware.steam-hardware.enable = true;
users.users.silk.packages = with pkgs; [
heroic
lutris
dolphin-emu
mcpelauncher-ui-qt
melonDS
steam-rom-manager
srb2
prismlauncher
# Minecraft Java JRE's for all versions
temurin-jre-bin
temurin-jre-bin-17
temurin-jre-bin-8
];
programs = {
gamescope = {
enable = true;
capSysNice = true;
};
gamemode.enable = true;
steam = {
enable = true;
remotePlay.openFirewall = true;
dedicatedServer.openFirewall = true;
localNetworkGameTransfers.openFirewall = true;
gamescopeSession.enable = true;
protontricks.enable = true;
extest.enable = true;
package = pkgs.steam.override {
extraEnv = {
OBS_VKCAPTURE = "1";
RADV_TEX_ANISO = "16";
};
extraPkgs = pkgs': with pkgs'; [
xorg.libXcursor
xorg.libXi
xorg.libXinerama
xorg.libXScrnSaver
libpng
libpulseaudio
libvorbis
stdenv.cc.cc.lib # Provides libstdc++.so.6
libkrb5
keyutils
# Add other libraries as needed
];
};
extraCompatPackages = [ pkgs.steamtinkerlaunch pkgs.proton-ge-bin pkgs.proton-cachyos ];
};
};
}
Though sadly it refuses to work still
I launched steam via console to try and see what might be the issue and got this:
System.Exception: x11 not available
at Xalia.Sdl.SplitOverlayBox.CreateWindows () [0x0005b] in <5b50cb9692864a58a57a8b9091dd6c44>:0
at Xalia.Sdl.SplitOverlayBox..ctor (Xalia.Sdl.WindowingSystem windowingSystem) [0x0002e] in <5b50cb9692864a58a57a8b9091dd6c44>:0
at Xalia.Sdl.WindowingSystem.CreateOverlayBox () [0x0001b] in <5b50cb9692864a58a57a8b9091dd6c44>:0
at Xalia.Ui.UiMain..ctor () [0x00039] in <5b50cb9692864a58a57a8b9091dd6c44>:0
at Xalia.MainClass.Init (Xalia.Gudl.GudlStatement[] config) [0x0001b] in <5b50cb9692864a58a57a8b9091dd6c44>:0
chdir "/home/silk/.local/share/Steam/steamapps/common/Deadlock"
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/silk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
failed to inherit capabilities: Operation not permittedGame Recording - would start recording game 1422450, but recording for this game is disabled
Adding process 16368 for gameID 1422450
Game Recording - game stopped [gameid=1422450]
Removing process 16368 for gameID 1422450
And using a different backend like sdl leads to this:
pressure-vessel-wrap[19612]: W: Found more than one possible libdrm data directory from provider
pressure-vessel-wrap[19612]: W: "run/opengl-driver/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[19612]: W: "run/opengl-driver-32/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[19612]: W: Found more than one possible drirc.d data directory from provider
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Proton: Upgrading prefix from CachyOS-10.0-200 to GE-Proton10-19 (/home/silk/.local/share/Steam/steamapps/compatdata/0/)
Proton: Prefix has an invalid version?! You may want to back up user files and delete this prefix.
ProtonFixes[19849] WARN: Skipping fix execution. We are probably running an unit test.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
fsync: up and running.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[obs-vkcapture] Init Vulkan 1.5.3 (64bit)
WARNING: radv is not a conformant Vulkan implementation, testing use only.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[obs-vkcapture] Init Vulkan 1.5.3 (64bit)
WARNING: radv is not a conformant Vulkan implementation, testing use only.
radv: Forcing anisotropy filter to 16x
Fossilize INFO: Overriding serialization path: "/home/silk/.local/share/Steam/shader_cache_temp_dir_d3d11_64/fozpipelinesv6/steamapprun_pipeline_cache".
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
pressure-vessel-wrap[19952]: W: Found more than one possible libdrm data directory from provider
pressure-vessel-wrap[19952]: W: "run/opengl-driver/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[19952]: W: "run/opengl-driver-32/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[19952]: W: Found more than one possible drirc.d data directory from provider
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ProtonFixes[20200] WARN: Skipping fix execution. We are probably running an unit test.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
fsync: up and running.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[obs-vkcapture] Init Vulkan 1.5.3 (64bit)
WARNING: radv is not a conformant Vulkan implementation, testing use only.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[obs-vkcapture] Init Vulkan 1.5.3 (64bit)
WARNING: radv is not a conformant Vulkan implementation, testing use only.
WARNING: radv is not a conformant Vulkan implementation, testing use only.
radv: Forcing anisotropy filter to 16x
Fossilize INFO: Overriding serialization path: "/home/silk/.local/share/Steam/shader_cache_temp_dir_d3d12_64/fozpipelinesv6/steamapprun_pipeline_cache".
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
pressure-vessel-wrap[20309]: W: Found more than one possible libdrm data directory from provider
pressure-vessel-wrap[20309]: W: "run/opengl-driver/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[20309]: W: "run/opengl-driver-32/share/drirc.d" is unlikely to appear in "/run/host"
pressure-vessel-wrap[20309]: W: Found more than one possible drirc.d data directory from provider
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
fsync: up and running.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
[obs-vkcapture] Init Vulkan 1.5.3 (64bit)
WARNING: radv is not a conformant Vulkan implementation, testing use only.
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
chdir "/home/silk/.local/share/Steam/steamapps/common/Deadlock"
ERROR: ld.so: object '/nix/store/5qy880i4vzp591hz5ac66hjdngii7kx2-extest-1.0.2/lib/libextest.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/silk/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
failed to inherit capabilities: Operation not permittedGame Recording - would start recording game 1422450, but recording for this game is disabled
Adding process 20632 for gameID 1422450
Game Recording - game stopped [gameid=1422450]
Removing process 20632 for gameID 1422450
(the ld.so error has been reduced here but it was a lot of those)
If anyone could help I would be super appreciative 
Would I have to wait for Gnome 49?
that’s fair