From f9d4e198882f250dec6faec4e4aba9032bccbfef Mon Sep 17 00:00:00 2001
From: LordMZTE <lord@mzte.de>
Date: Fri, 19 Sep 2025 18:14:36 +0200
Subject: [PATCH] TOOLS/lua/gamma-auto: update on timer when on Linux

The Linux implementation of ambient-light is not observable.
---
 TOOLS/lua/gamma-auto.lua | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/TOOLS/lua/gamma-auto.lua b/TOOLS/lua/gamma-auto.lua
index 14c265c487..c71c8b01ac 100644
--- a/TOOLS/lua/gamma-auto.lua
+++ b/TOOLS/lua/gamma-auto.lua
@@ -19,4 +19,11 @@ local function lux_changed(_, lux)
     mp.set_property_number("gamma-factor", gamma)
 end
 
-mp.observe_property("ambient-light", "number", lux_changed)
+if mp.get_property("platform") == "linux" then
+    -- observing ambient-light isn't supported on Linux
+    mp.add_periodic_timer(1, function()
+        lux_changed(nil, mp.get_property_number("ambient-light"))
+    end)
+else
+    mp.observe_property("ambient-light", "number", lux_changed)
+end