Add basic dell precision 5490

dell/precision/5490/README.md

@@ -0,0 +1,15 @@
+# Dell Precision 5490
+
+The internal monitor needs Linux Kernel >= 6.7 so enabling hybrid graphics does not work out of the box in 24.05. Setting
+
+```
+boot.kernelParams = [ "i915.force_probe=7d55" ];
+```
+
+helped but introduced some screen tearing.
+
+Setting
+```
+boot.kernelPackages = pkgs.linuxPackages_latest;
+```
+in nixos-stable worked with no problems.

dell/precision/5490/default.nix

@@ -0,0 +1,14 @@
+{ lib, ... }:
+{
+  imports = [
+    ../../../common/gpu/nvidia
+  ];
+
+  # or even better: boot.kernelParams = pkgs.linuxPackages_latest;
+  boot.kernelParams = [ "i915.force_probe=7d55" ];
+
+  hardware.nvidia.prime = {
+    intelBusId = "PCI:0:2:0";
+    nvidiaBusId = "PCI:1:0:0";
+  };
+}