From 075b2f27722d2f28a5c3d4e201c7e7e787cb68de Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Thu, 21 Oct 2021 08:20:38 +0200
Subject: [PATCH 2/2] Revert "Drop X11 root properties for KDE full session /
 session version"

This reverts commit 9a4e3d39c2a9ca48f39a60ae2ea88e9921723cec.
---
 startkde/startplasma-waylandsession.cpp |  1 +
 startkde/startplasma-x11.cpp            |  1 +
 startkde/startplasma.cpp                | 22 ++++++++++++++++++++++
 startkde/startplasma.h                  |  1 +
 4 files changed, 25 insertions(+)

diff --git a/startkde/startplasma-waylandsession.cpp b/startkde/startplasma-waylandsession.cpp
index ed496cc24..d0c83bf5a 100644
--- a/startkde/startplasma-waylandsession.cpp
+++ b/startkde/startplasma-waylandsession.cpp
@@ -41,6 +41,7 @@ int main(int argc, char **argv)
     // Keep for KF5; remove in KF6 (KInit will be gone then)
     runSync(QStringLiteral("kdeinit5_shutdown"), {});
 
+    cleanupX11();
     out << "startplasma-waylandsession: Done.\n";
 
     return 0;
diff --git a/startkde/startplasma-x11.cpp b/startkde/startplasma-x11.cpp
index d6b2c5439..7ddf7b3ea 100644
--- a/startkde/startplasma-x11.cpp
+++ b/startkde/startplasma-x11.cpp
@@ -93,6 +93,7 @@ int main(int argc, char **argv)
     runSync(QStringLiteral("kdeinit5_shutdown"), {});
 
     cleanupPlasmaEnvironment(oldSystemdEnvironment);
+    cleanupX11();
 
     out << "startkde: Done.\n";
 
diff --git a/startkde/startplasma.cpp b/startkde/startplasma.cpp
index 8d0b0ba89..5f78e7016 100644
--- a/startkde/startplasma.cpp
+++ b/startkde/startplasma.cpp
@@ -336,6 +336,28 @@ void setupX11()
     //     so don't move this up.
 
     runSync(QStringLiteral("xsetroot"), {QStringLiteral("-cursor_name"), QStringLiteral("left_ptr")});
+    runSync(QStringLiteral("xprop"),
+            {QStringLiteral("-root"),
+             QStringLiteral("-f"),
+             QStringLiteral("KDE_FULL_SESSION"),
+             QStringLiteral("8t"),
+             QStringLiteral("-set"),
+             QStringLiteral("KDE_FULL_SESSION"),
+             QStringLiteral("true")});
+    runSync(QStringLiteral("xprop"),
+            {QStringLiteral("-root"),
+             QStringLiteral("-f"),
+             QStringLiteral("KDE_SESSION_VERSION"),
+             QStringLiteral("32c"),
+             QStringLiteral("-set"),
+             QStringLiteral("KDE_SESSION_VERSION"),
+             QStringLiteral("5")});
+}
+
+void cleanupX11()
+{
+    runSync(QStringLiteral("xprop"), {QStringLiteral("-root"), QStringLiteral("-remove"), QStringLiteral("KDE_FULL_SESSION")});
+    runSync(QStringLiteral("xprop"), {QStringLiteral("-root"), QStringLiteral("-remove"), QStringLiteral("KDE_SESSION_VERSION")});
 }
 
 void cleanupPlasmaEnvironment(const std::optional<QStringList> &oldSystemdEnvironment)
diff --git a/startkde/startplasma.h b/startkde/startplasma.h
index e8684be74..00c5c1570 100644
--- a/startkde/startplasma.h
+++ b/startkde/startplasma.h
@@ -26,6 +26,7 @@ void importSystemdEnvrionment();
 void runEnvironmentScripts();
 void setupPlasmaEnvironment();
 void cleanupPlasmaEnvironment(const std::optional<QStringList> &oldSystemdEnvironment);
+void cleanupX11();
 bool syncDBusEnvironment();
 void setupFontDpi();
 QProcess *setupKSplash();
-- 
2.33.0