disable surface keyboard we don't have

sw-kiosk.nix

@@ -80,6 +80,16 @@
       "/run/current-system/sw/share/gsettings-schemas/${pkgs.gsettings-desktop-schemas.name}/glib-2.0/schemas";
   };
 
+  services.xserver.libinput = {
+    enable = true;
+    devices = {
+      "disable-ghost-keyboard" = {
+	matchDevice = "AT Translated Set 2 keyboard";
+	ignore = true;
+      };
+    };
+  };
+
   services.udev.extraRules = ''
     # These shouldn't be counted as keyboards, but should still produce events
     ACTION=="add|change", KERNEL=="event*", ATTRS{name}=="Video Bus", \
@@ -90,6 +100,8 @@
       ENV{ID_INPUT_KEYBOARD}="", ENV{ID_INPUT_KEY}=""
     ACTION=="add|change", KERNEL=="event*", ATTRS{name}=="Intel HID 5 button array", \
       ENV{ID_INPUT_KEYBOARD}="", ENV{ID_INPUT_KEY}=""
+    ACTION=="change", SUBSYSTEM=="switch", ATTRS{name}=="Intel HID switches", \
+      ENV{SW_TABLET_MODE}="1"
   '';
 
   systemd.user.services."force-osk" = {