From c77571cd8bce0fece42e7e16a6f8071077f5728e Mon Sep 17 00:00:00 2001
From: ulic-youthlic <ulic.youthlic@gmail.com>
Date: Sun, 13 Jul 2025 06:04:55 +0800
Subject: [PATCH] Improve ddcci mount service

---
 home/david/configurations/Tytonidae/niri.nix | 2 +-
 nixos/configurations/Tytonidae/hardware.nix  | 9 ++++++---
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/home/david/configurations/Tytonidae/niri.nix b/home/david/configurations/Tytonidae/niri.nix
index a698d1a..f0eccf1 100644
--- a/home/david/configurations/Tytonidae/niri.nix
+++ b/home/david/configurations/Tytonidae/niri.nix
@@ -12,7 +12,7 @@ in {
           }
           {
             name = "DP-3";
-            path = "/sys/class/backlight/ddcci13";
+            path = "/sys/class/backlight/ddcci15";
             capturer = "wayland";
           }
         ];
diff --git a/nixos/configurations/Tytonidae/hardware.nix b/nixos/configurations/Tytonidae/hardware.nix
index 4f990cf..82af563 100644
--- a/nixos/configurations/Tytonidae/hardware.nix
+++ b/nixos/configurations/Tytonidae/hardware.nix
@@ -63,10 +63,13 @@
             id=$(echo "$1" | cut -d "-" -f 2)
             while ((success < 1)) && ((i++ < 5)); do
               if ddcutil getvcp 10 -b "$id"; then
-                success=1
-                echo ddcci 0x37 > "/sys/bus/i2c/devices/$1/new_device"
-                echo ddcci attached to "$1"
+                if echo ddcci 0x37 > "/sys/bus/i2c/devices/$1/new_device"; then
+                  success=1
+                  echo ddcci attached to "$1"
+                fi
               fi
+              echo "Try $i"
+              sleep 1;
             done
           '';
         };