From 261121547d8914a4fd9b95733fedb155590583ff Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Thu, 17 Aug 2023 15:37:37 +0200
Subject: [PATCH] backends/drm: check explicit gpu paths for symlinks

Otherwise we don't process hotplugs when we should
---
 src/backends/drm/drm_backend.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/backends/drm/drm_backend.cpp b/src/backends/drm/drm_backend.cpp
index 87db1a55bc..476d10b91f 100644
--- a/src/backends/drm/drm_backend.cpp
+++ b/src/backends/drm/drm_backend.cpp
@@ -29,6 +29,7 @@
 #include <KLocalizedString>
 // Qt
 #include <QCoreApplication>
+#include <QFileInfo>
 #include <QSocketNotifier>
 #include <QStringBuilder>
 // system
@@ -174,7 +175,10 @@ void DrmBackend::handleUdevEvent()
     while (auto device = m_udevMonitor->getDevice()) {
         // Ignore the device seat if the KWIN_DRM_DEVICES envvar is set.
         if (!m_explicitGpus.isEmpty()) {
-            if (!m_explicitGpus.contains(device->devNode())) {
+            const bool foundMatch = std::any_of(m_explicitGpus.begin(), m_explicitGpus.end(), [&device](const QString &explicitPath) {
+                return QFileInfo(explicitPath).canonicalPath() == QFileInfo(device->devNode()).canonicalPath();
+            });
+            if (!foundMatch) {
                 continue;
             }
         } else {