From 3a5cb1c44188a0bec998589cd31ba5b2274be745 Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Thu, 25 Nov 2021 15:41:47 +0100
Subject: [PATCH] backends/drm: only set pageflipPending when wanted

It shouldn't be set when the pipeline wants to be disabled. Whenever that
happens it will wait forever for the pageflip that doesn't come
---
 src/backends/drm/drm_pipeline.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/backends/drm/drm_pipeline.cpp b/src/backends/drm/drm_pipeline.cpp
index 003fd0bf2b..170e8e63ea 100644
--- a/src/backends/drm/drm_pipeline.cpp
+++ b/src/backends/drm/drm_pipeline.cpp
@@ -183,7 +183,9 @@ bool DrmPipeline::commitPipelines(const QVector<DrmPipeline*> &pipelines, Commit
                 }
             }
             if (mode != CommitMode::Test) {
-                pipeline->m_pageflipPending = true;
+                if (pipeline->activePending()) {
+                    pipeline->m_pageflipPending = true;
+                }
                 pipeline->m_connector->commit();
                 if (pipeline->pending.crtc) {
                     pipeline->pending.crtc->primaryPlane()->setNext(pipeline->m_primaryBuffer);