Improve X270 hardware experience

hosts/development.nix

@@ -33,6 +33,9 @@
         # WCH-LinkE
         SUBSYSTEM=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="8010", MODE="0660", GROUP="plugdev"
 
+        # Glasgow
+        SUBSYSTEM=="usb", ATTRS{idVendor}=="20b7", ATTRS{idProduct}=="9db1", MODE="0660", GROUP="plugdev"
+
         # Shared V-USB VID:PID for use with various homebrew stuff
         ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05dc", MODE="0660", GROUP="plugdev"
         ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05df", MODE="0660", GROUP="plugdev"

hosts/x270.nix

@@ -1,4 +1,4 @@
-{ ... }:
+{ lib, pkgs, ... }:
 {
     hardware.trackpoint = {
         enable = true;
@@ -7,14 +7,31 @@
     };
 
     services.xserver.videoDrivers = [ "modesetting" ];
+
+    boot.initrd.kernelModules = [ "i915" ];
     hardware.opengl = {
         enable = true;
-        driSupport = true;
-        driSupport32Bit = true;
+        # driSupport = true;
+        # driSupport32Bit = true;
     };
+    environment.variables = {
+        VDPAU_DRIVER = "va_gl";
+    };
+    hardware.opengl.extraPackages = with pkgs; [
+        (if (lib.versionOlder (lib.versions.majorMinor lib.version) "23.11") then vaapiIntel else intel-vaapi-driver)
+        libvdpau-va-gl
+        intel-media-driver
+    ];
 
     console = {
         font = "Lat2-Terminus16";
         keyMap = "de";
     };
+
+    boot.kernelParams = [
+        # Disable ’Panel Self Refresh’. Fixes random freezes.
+        "i915.enable_psr=0"
+    ];
+
+    hardware.cpu.intel.updateMicrocode = true;
 }