From 303132ae0f21579d589d73b5a613f2699055aaac Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Wed, 7 Jul 2021 03:40:06 +0200
Subject: [PATCH] platforms/drm: update plane properties before updating
 outputs

Seems like some drivers change the properties in the time it takes to
initialize the scene
---
 src/plugins/platforms/drm/drm_gpu.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/plugins/platforms/drm/drm_gpu.cpp b/src/plugins/platforms/drm/drm_gpu.cpp
index 235704f512..405d7ec8f3 100644
--- a/src/plugins/platforms/drm/drm_gpu.cpp
+++ b/src/plugins/platforms/drm/drm_gpu.cpp
@@ -230,6 +230,11 @@ bool DrmGpu::updateOutputs()
         removedOutputs.append(removed);
     }
 
+    // before testing output configurations, update all the plane properties as they might have changed
+    for (const auto &plane : qAsConst(m_planes)) {
+        plane->updateProperties();
+    }
+
     for (DrmConnector *con : qAsConst(pendingConnectors)) {
         DrmScopedPointer<drmModeConnector> connector(drmModeGetConnector(m_fd, con->id()));
         if (!connector) {