diff --git a/kwin-5.8.7.orig/plugins/platforms/x11/standalone/CMakeLists.txt b/kwin-5.8.7/plugins/platforms/x11/standalone/CMakeLists.txt
--- a/kwin-5.8.7.orig/plugins/platforms/x11/standalone/CMakeLists.txt
+++ b/kwin-5.8.7/plugins/platforms/x11/standalone/CMakeLists.txt
@@ -14,8 +14,10 @@
     set(X11PLATFORM_SOURCES ${X11PLATFORM_SOURCES} glxbackend.cpp)
 endif()
 
+find_package(KF5Crash)
+
 add_library(KWinX11Platform MODULE ${X11PLATFORM_SOURCES})
-target_link_libraries(KWinX11Platform eglx11common kwin Qt5::X11Extras XCB::CURSOR)
+target_link_libraries(KWinX11Platform eglx11common kwin Qt5::X11Extras XCB::CURSOR KF5::Crash)
 if(X11_Xinput_FOUND)
     target_link_libraries(KWinX11Platform ${X11_Xinput_LIB})
 endif()
diff --git a/kwin-5.8.7.orig/plugins/platforms/x11/standalone/x11_platform.cpp b/kwin-5.8.7/plugins/platforms/x11/standalone/x11_platform.cpp
--- a/kwin-5.8.7.orig/plugins/platforms/x11/standalone/x11_platform.cpp
+++ b/kwin-5.8.7/plugins/platforms/x11/standalone/x11_platform.cpp
@@ -36,6 +36,7 @@
 
 #include <KConfigGroup>
 #include <KLocalizedString>
+#include <KCrash>
 
 #include <QThread>
 #include <QOpenGLContext>
@@ -213,13 +214,15 @@
             m_openGLFreezeProtection->setInterval(15000);
             m_openGLFreezeProtection->setSingleShot(true);
             m_openGLFreezeProtection->start();
+            QString configName = kwinApp()->config()->name();
             m_openGLFreezeProtection->moveToThread(m_openGLFreezeProtectionThread);
             connect(m_openGLFreezeProtection, &QTimer::timeout, m_openGLFreezeProtection,
-                [] {
+                [configName] {
                     const QString unsafeKey(QLatin1String("OpenGLIsUnsafe") + (kwinApp()->isX11MultiHead() ? QString::number(kwinApp()->x11ScreenNumber()) : QString()));
-                    auto group = KConfigGroup(kwinApp()->config(), "Compositing");
+                    auto group = KConfigGroup(KSharedConfig::openConfig(configName), "Compositing");
                     group.writeEntry(unsafeKey, true);
                     group.sync();
+                    KCrash::setDrKonqiEnabled(false);
                     qFatal("Freeze in OpenGL initialization detected");
                 }, Qt::DirectConnection);
         } else {