From f56cce2e20ac5f31981b5a0adb606f277ddb675b Mon Sep 17 00:00:00 2001
From: clsr <clsr@clsr.net>
Date: Fri, 19 Jun 2020 22:56:19 +0200
Subject: Add raw_min special case for nvidia backlight

---
 bl | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/bl b/bl
index 84f14d7..7db821e 100755
--- a/bl
+++ b/bl
@@ -27,6 +27,7 @@ get_bldir() {
 				exit 1
 			fi
 			bldir="$f"
+			BACKLIGHT="${f##*/}"
 		done
 	fi
 }
@@ -60,6 +61,12 @@ get_brightness() {
 	raw_curr="$(read_num "$bldir/brightness")"
 	max=100
 	curr=$(( (raw_curr + (raw_max / 2 / max)) * max / raw_max ))
+
+	# brightness 0 tends to completely turn off the backlight
+	raw_min=1
+	case "$BACKLIGHT" in
+		nvidia_[0-9]*) raw_min=0 ;; # nvidia_0 at 0 is still not off
+	esac
 }
 
 get_raw_new() {
@@ -92,9 +99,8 @@ get_raw_new() {
 		if [ "$raw_new" -gt "$raw_max" ]; then
 			raw_new="$raw_max"
 		fi
-		if [ "$raw_new" -le 0 ]; then
-			# brightness 0 tends to completely turn off the backlight
-			raw_new=1
+		if [ "$raw_new" -lt "$raw_min" ]; then
+			raw_new="$raw_min"
 		fi
 	fi
 }
-- 
cgit