From 9896eba02a9cb0784d3ef9a2200f51b3d0da4f70 Mon Sep 17 00:00:00 2001
From: Cameron Fleming <cameron@nevexo.space>
Date: Tue, 28 Jan 2025 21:49:26 +0000
Subject: [PATCH] fix(display): Don't attempt to start the tickers if the
 display is disabled

If max_brightness is zero, then there's no point in trying to dim it (or
turn it off...)
---
 display.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/display.go b/display.go
index ab208d1..37a5984 100644
--- a/display.go
+++ b/display.go
@@ -208,6 +208,11 @@ func watchTsEvents() {
 // if they're not already set. This is done separately to the init routine as the "never dim"
 // option has the value set to zero, but time.NewTicker only accept positive values.
 func startBacklightTickers() {
+	// Don't start the tickers if the display is switched off.
+	if config.DisplayMaxBrightness == 0 {
+		return
+	}
+
 	LoadConfig()
 	if dimTicker == nil && config.DisplayDimAfterSec != 0 {
 		fmt.Printf("display: dim_ticker has started\n")