From a800b54a13d3872b37b5f2ddd3cd381d4f183a30 Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Wed, 23 Aug 2023 13:28:58 +0200
Subject: [PATCH] backends/drm: fix legacy modesets

There's no pending frame on modesets with legacy, so calling pageFlipped crashes KWin

BUG: 473664
---
 src/backends/drm/drm_commit.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backends/drm/drm_commit.cpp b/src/backends/drm/drm_commit.cpp
index b166020106..1cce0190fb 100644
--- a/src/backends/drm/drm_commit.cpp
+++ b/src/backends/drm/drm_commit.cpp
@@ -126,7 +126,7 @@ bool DrmLegacyCommit::doModeset(DrmConnector *connector, DrmConnectorMode *mode)
 {
     uint32_t connectorId = connector->id();
     if (drmModeSetCrtc(gpu()->fd(), m_pipeline->crtc()->id(), m_buffer->framebufferId(), 0, 0, &connectorId, 1, mode->nativeMode()) == 0) {
-        pageFlipped(std::chrono::steady_clock::now().time_since_epoch());
+        m_pipeline->crtc()->setCurrent(m_buffer);
         return true;
     } else {
         return false;