diff --git a/system_files/deck/shared/usr/etc/default/steamos-nested-desktop b/system_files/deck/shared/usr/etc/default/steamos-nested-desktop
index c410f71f..f2444b9f 100644
--- a/system_files/deck/shared/usr/etc/default/steamos-nested-desktop
+++ b/system_files/deck/shared/usr/etc/default/steamos-nested-desktop
@@ -1,2 +1,26 @@
-STEAMOS_NESTED_DESKTOP_WIDTH=1280
-STEAMOS_NESTED_DESKTOP_HEIGHT=800
\ No newline at end of file
+# Adjust the below values to set the resolution for devices not explicitly checked for.
+# This includes all laptops, all desktops, and some handhelds.
+STEAMOS_UNKNOWN_NESTED_DESKTOP_WIDTH=1920
+STEAMOS_UNKNOWN_NESTED_DESKTOP_HEIGHT=1080
+
+# Handle nested desktop resolution for known devices.
+case "$(cat /sys/devices/virtual/dmi/id/product_name)" in
+	"Jupiter" | "Galileo" | "AYANEO GEEK" | "G1619-05")
+		STEAMOS_NESTED_DESKTOP_WIDTH=1280
+		STEAMOS_NESTED_DESKTOP_HEIGHT=800 ;;
+	"ROG Ally RC71L_RC71L" | "G1618-04" | "G1617-01")
+		STEAMOS_NESTED_DESKTOP_WIDTH=1920
+		STEAMOS_NESTED_DESKTOP_HEIGHT=1080 ;;
+	"AYANEO 2" | "AYANEO 2S" | "AOKZOE A1 AR07" | "G1619-04")
+		STEAMOS_NESTED_DESKTOP_WIDTH=1920
+		STEAMOS_NESTED_DESKTOP_HEIGHT=1200 ;;
+	"83E1")
+		STEAMOS_NESTED_DESKTOP_WIDTH=2560
+		STEAMOS_NESTED_DESKTOP_HEIGHT=1600 ;;
+	"Win600")
+		STEAMOS_NESTED_DESKTOP_WIDTH=1280
+		STEAMOS_NESTED_DESKTOP_HEIGHT=720 ;;
+	*)
+		STEAMOS_NESTED_DESKTOP_WIDTH=$STEAMOS_UNKNOWN_NESTED_DESKTOP_WIDTH
+		STEAMOS_NESTED_DESKTOP_HEIGHT=$STEAMOS_UNKNOWN_NESTED_DESKTOP_HEIGHT ;;
+esac