From 6a8f17b5f636a0ce90a4ed8342803baee30de1b3 Mon Sep 17 00:00:00 2001
From: Scott Anderson <scott@anderso.nz>
Date: Wed, 6 Mar 2019 10:49:59 +1300
Subject: [PATCH] backend/drm: Don't fail on failing to find overlay format

Some hardware exists which doesn't support XRGB/ARGB overlays, and we
aren't even using overlay planes, so don't fail on trying to find a
format.
---
 backend/drm/drm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 40a1fdbf..7fd36794 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -133,7 +133,10 @@ static bool init_planes(struct wlr_drm_backend *drm) {
 				rgb_format = fmt;
 			}
 		}
-		if (rgb_format == DRM_FORMAT_INVALID) {
+		// Some overlays exist which don't support XRGB8888/ARGB8888
+		// We aren't even using overlay planes currently, so don't fail
+		// on something unnecessary.
+		if (type != DRM_PLANE_TYPE_OVERLAY && rgb_format == DRM_FORMAT_INVALID) {
 			wlr_log(WLR_ERROR, "Failed to find an RGB format for plane %zu", i);
 			drmModeFreePlane(plane);
 			goto error_planes;