diff --git a/VRR-setups.md b/VRR-setups.md
index 94d476c..951db4a 100644
--- a/VRR-setups.md
+++ b/VRR-setups.md
@@ -4,6 +4,7 @@ To add an entry:
 
 - Make sure VRR is enabled with `swaymsg -t get_outputs` (look for "Adaptive sync")
 - Play with your desktop for a while, try various apps (text editing, web browsing, video, games)
+- Also play with the backlight level
 - To get the VRR range, you can use: `cat /sys/class/drm/card0-DP-1/edid | edid-decode` (look for "Display Range Limits")
 
 | Screen | GPU | VRR range | Notes