From 1635fdc3a3efe574cee978ce74f995a7ab1ddad5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Tue, 21 Oct 2025 21:44:34 +0800
Subject: [PATCH] vanadium/autorandr: delay software brightness setting

---
 nix/configurations/vanadium/nixos/display.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nix/configurations/vanadium/nixos/display.nix b/nix/configurations/vanadium/nixos/display.nix
index 01003036..b309b82f 100644
--- a/nix/configurations/vanadium/nixos/display.nix
+++ b/nix/configurations/vanadium/nixos/display.nix
@@ -61,7 +61,11 @@
           device, # obtain with `xrandr`
           brightness, # [0..1]
         }:
+        # Hack:
+        # xrandr would consider the display being connected before we can change its brightness
+        # For that reason, we can't base our delay on its output, sadly.
           singleton "10_xrandr_brightness" ''
+            sleep 10
             xrandr --output ${device} --brightness ${toString brightness}
           '';