From 09279b90a63c5fdb2e28a61f2dfc936285126177 Mon Sep 17 00:00:00 2001
From: emersion <contact@emersion.fr>
Date: Sat, 11 Nov 2017 19:09:34 +0100
Subject: Add wlr_output.serial

---
 backend/drm/util.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'backend/drm/util.c')

diff --git a/backend/drm/util.c b/backend/drm/util.c
index 656c070a..c27d7b67 100644
--- a/backend/drm/util.c
+++ b/backend/drm/util.c
@@ -106,8 +106,15 @@ void parse_edid(struct wlr_output *restrict output, size_t len, const uint8_t *d
 			if (nl) {
 				*nl = '\0';
 			}
+		} else if (flag == 0 && data[i + 3] == 0xFF) {
+			sprintf(output->serial, "%.13s", &data[i + 5]);
 
-			break;
+			// Monitor serial numbers are terminated by newline if they're too
+			// short
+			char *nl = strchr(output->serial, '\n');
+			if (nl) {
+				*nl = '\0';
+			}
 		}
 	}
 }
-- 
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