From 6a7a06aba56ac1480ff1660c2ad6aecfa01e0c81 Mon Sep 17 00:00:00 2001
From: Shaun Inman <shaun@panic.com>
Date: Thu, 2 Mar 2023 21:28:17 -0500
Subject: [PATCH] monitor hdmi changes to keep the backlight off

---
 src/keymon/keymon.c          | 6 ++++++
 src/libmsettings/msettings.c | 3 ++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/keymon/keymon.c b/src/keymon/keymon.c
index 025f52c..14ca0bc 100644
--- a/src/keymon/keymon.c
+++ b/src/keymon/keymon.c
@@ -32,6 +32,7 @@ static pthread_t ports_pt;
 
 #define JACK_STATE_PATH "/sys/class/switch/h2w/state"
 #define HDMI_STATE_PATH "/sys/class/switch/hdmi/state"
+#define BACKLIGHT_PATH "/sys/class/backlight/backlight.2/bl_power"
 
 int getInt(char* path) {
 	int i = 0;
@@ -68,6 +69,11 @@ static void* watchPorts(void *arg) {
 			had_hdmi = has_hdmi;
 			SetHDMI(has_hdmi);
 		}
+		else if (has_hdmi && !getInt(BACKLIGHT_PATH)) {
+			SetHDMI(has_hdmi);
+		}
+		
+		
 	}
 	
 	return 0;
diff --git a/src/libmsettings/msettings.c b/src/libmsettings/msettings.c
index a23a7fe..bb69dc3 100644
--- a/src/libmsettings/msettings.c
+++ b/src/libmsettings/msettings.c
@@ -138,7 +138,7 @@ void SetRawBrightness(int val) { // 0 - 1024
 	}
 	
 	// this prevents exiting/launching from turning the screen back on
-	SetHDMI(GetHDMI()); // TODO: isn't working
+	// SetHDMI(GetHDMI()); // TODO: isn't working
 }
 void SetRawVolume(int val) { // 0 - 40
 	int fd = open(VOLUME_PATH, O_WRONLY);
@@ -169,6 +169,7 @@ void SetJack(int value) {
 int GetHDMI(void) {	
 	// TODO: tmp, testing hdmi without an hdmi output
 	// return settings->jack;
+	// printf("GetHDMI() %i\n", settings->hdmi); fflush(stdout);
 	return settings->hdmi;
 }
 void SetHDMI(int value) {