From 0a3922e29dc937a0a14beed73266a4a9298a647a Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Fri, 14 Jan 2022 09:07:12 +0100
Subject: [PATCH] backends/drm: use the correct format for CPU copy

BUG: 448376
---
 src/backends/drm/egl_gbm_backend.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backends/drm/egl_gbm_backend.cpp b/src/backends/drm/egl_gbm_backend.cpp
index 831e09f66f..e4820bcf82 100644
--- a/src/backends/drm/egl_gbm_backend.cpp
+++ b/src/backends/drm/egl_gbm_backend.cpp
@@ -334,7 +334,7 @@ QSharedPointer<DrmBuffer> EglGbmBackend::importFramebuffer(Output &output, const
     }
     // ImportMode::DumbBuffer
     if (!output.current.importSwapchain || output.current.importSwapchain->size() != size) {
-        output.current.importSwapchain = QSharedPointer<DumbSwapchain>::create(m_gpu, size, DRM_FORMAT_XRGB8888);
+        output.current.importSwapchain = QSharedPointer<DumbSwapchain>::create(m_gpu, size, renderingBackend()->drmFormat(output.output));
         if (output.current.importSwapchain->isEmpty()) {
             output.current.importSwapchain = nullptr;
         }