From b89f04943c7f4306ff4094b05f979fbc682134a7 Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Thu, 9 Sep 2021 11:28:33 +0200
Subject: [PATCH] platforms/drm: only test combinations if there are any

Otherwise we could hit an assert in DrmPipeline
---
 src/plugins/platforms/drm/drm_gpu.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/platforms/drm/drm_gpu.cpp b/src/plugins/platforms/drm/drm_gpu.cpp
index 05872813f8..e2a8b82224 100644
--- a/src/plugins/platforms/drm/drm_gpu.cpp
+++ b/src/plugins/platforms/drm/drm_gpu.cpp
@@ -265,7 +265,7 @@ QVector<DrmPipeline *> DrmGpu::findWorkingCombination(const QVector<DrmPipeline
 {
     if (connectors.isEmpty() || crtcs.isEmpty()) {
         // no further pipelines can be added -> test configuration
-        if (commitCombination(pipelines)) {
+        if (pipelines.isEmpty() || commitCombination(pipelines)) {
             return pipelines;
         } else {
             return {};