fix: linux 6.19 works not well with nvidia driver

hosts/idols-ai/hardware-configuration.nix

@@ -41,8 +41,7 @@
   boot.loader.systemd-boot.enable = true;
 
   # https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/top-level/linux-kernels.nix
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelPackages = pkgs.linuxPackages_6_18; # 6.19 works not well with nvidia driver
-  # boot.kernelPackages = pkgs.linuxPackages_xanmod_latest;
 
   boot.initrd.availableKernelModules = [
     "xhci_pci"

hosts/idols-ai/nvidia.nix

@@ -27,24 +27,7 @@
     # package = config.boot.kernelPackages.nvidiaPackages.production;
 
     # https://github.com/NixOS/nixpkgs/issues/489947
-    # Apply CachyOS kernel 6.19 patch to NVIDIA latest driver
+    package = config.boot.kernelPackages.nvidiaPackages.latest;
-    package =
-      let
-        base = config.boot.kernelPackages.nvidiaPackages.latest;
-        cachyos-nvidia-patch = pkgs.fetchpatch {
-          url = "https://raw.githubusercontent.com/CachyOS/CachyOS-PKGBUILDS/master/nvidia/nvidia-utils/kernel-6.19.patch";
-          sha256 = "sha256-YuJjSUXE6jYSuZySYGnWSNG5sfVei7vvxDcHx3K+IN4=";
-        };
-
-        # Patch the appropriate driver based on config.hardware.nvidia.open
-        driverAttr = if config.hardware.nvidia.open then "open" else "bin";
-      in
-      base
-      // {
-        ${driverAttr} = base.${driverAttr}.overrideAttrs (oldAttrs: {
-          patches = (oldAttrs.patches or [ ]) ++ [ cachyos-nvidia-patch ];
-        });
-      };
 
     # required by most wayland compositors!
     modesetting.enable = true;