diff -ur libkworkspace_orig/CMakeLists.txt libkworkspace/CMakeLists.txt
--- libkworkspace_orig/CMakeLists.txt	2021-10-29 17:13:19.549710332 +0200
+++ libkworkspace/CMakeLists.txt	2021-10-29 17:13:36.539658992 +0200
@@ -60,6 +60,11 @@
                         autostartscriptdesktopfile.cpp
    )
 
+ecm_qt_declare_logging_category(kworkspace_LIB_SRCS HEADER debug.h
+                                IDENTIFIER LIBKWORKSPACE
+                                CATEGORY_NAME kde.libkworkspace
+                                DEFAULT_SEVERITY Debug)
+
 add_definitions(-DTRANSLATION_DOMAIN=\"libkworkspace\")
 
 qt5_add_dbus_interface(kworkspace_LIB_SRCS ${KINIT_DBUS_INTERFACES_DIR}/kf5_org.kde.KLauncher.xml klauncher_interface)
Only in libkworkspace: CMakeLists.txt.orig
Only in libkworkspace: CMakeLists.txt.rej
diff -ur libkworkspace_orig/login1_manager_interface.cpp libkworkspace/login1_manager_interface.cpp
--- libkworkspace_orig/login1_manager_interface.cpp	2021-08-31 13:52:18.000000000 +0200
+++ libkworkspace/login1_manager_interface.cpp	2021-10-29 17:13:36.539658992 +0200
@@ -22,6 +22,8 @@
 #include "login1_manager_interface.h"
 #include "sessionmanagementbackend.h"
 
+#include "debug.h"
+
 enum LogindProvider {
     Unknown,
     None,
@@ -57,6 +59,7 @@
                              connection,
                              parent)
 {
+    qCDebug(LIBKWORKSPACE) << "OrgFreedesktopLogin1ManagerInterface LogindMode: " << getLogindMode();
 }
 
 OrgFreedesktopLogin1ManagerInterface::~OrgFreedesktopLogin1ManagerInterface()
diff -ur libkworkspace_orig/sessionmanagementbackend.cpp libkworkspace/sessionmanagementbackend.cpp
--- libkworkspace_orig/sessionmanagementbackend.cpp	2021-08-31 13:52:18.000000000 +0200
+++ libkworkspace/sessionmanagementbackend.cpp	2021-10-29 17:13:36.539658992 +0200
@@ -34,6 +34,8 @@
 #include "login1_manager_interface.h"
 #include "upower_interface.h"
 
+#include "debug.h"
+
 static SessionBackend *s_backend = nullptr;
 
 SessionBackend *SessionBackend::self()
@@ -41,14 +43,18 @@
     static QMutex mutex;
     QMutexLocker lock(&mutex);
 
     if (s_backend) {
+        qCDebug(LIBKWORKSPACE) << "*SessionBackend::self() returning existing singleton";
         return s_backend;
     }
     if (LogindSessionBackend::exists()) {
+        qCInfo(LIBKWORKSPACE) << "*SessionBackend::self() creating LogindSessionBackend";
         s_backend = new LogindSessionBackend();
     } else if (ConsoleKitSessionBackend::exists()) {
+        qCInfo(LIBKWORKSPACE) << "*SessionBackend::self() creating ConsoleKitSessionBackend";
         s_backend = new ConsoleKitSessionBackend();
     } else {
+        qCInfo(LIBKWORKSPACE) << "*SessionBackend::self() creating DummySessionBackend";
         s_backend = new DummySessionBackend();
     }
 
@@ -79,6 +85,8 @@
 
 LogindSessionBackend::LogindSessionBackend()
 {
+    qCDebug(LIBKWORKSPACE) << "LogindSessionBackend()";
+
     m_login1 = new OrgFreedesktopLogin1ManagerInterface(QStringLiteral("org.freedesktop.login1"),
                                                         QStringLiteral("/org/freedesktop/login1"),
                                                         QDBusConnection::systemBus(),
@@ -160,7 +168,9 @@
 
 void LogindSessionBackend::suspend()
 {
+    qCDebug(LIBKWORKSPACE) << "LogindSessionBackend::suspend() before m_login1->Suspend(true)";
     m_login1->Suspend(true);
+    qCDebug(LIBKWORKSPACE) << "LogindSessionBackend::suspend() after  m_login1->Suspend(true)";
 }
 
 void LogindSessionBackend::hybridSuspend()
@@ -250,7 +260,9 @@
 
 void ConsoleKitSessionBackend::suspend()
 {
+    qCDebug(LIBKWORKSPACE) << "ConsoleKitSessionBackend::suspend() before m_upower->Suspend()";
     m_upower->Suspend();
+    qCDebug(LIBKWORKSPACE) << "ConsoleKitSessionBackend::suspend() after  m_upower->Suspend()";
 }
 
 void ConsoleKitSessionBackend::hibernate()
diff -ur libkworkspace_orig/sessionmanagement.cpp libkworkspace/sessionmanagement.cpp
--- libkworkspace_orig/sessionmanagement.cpp	2021-08-31 13:52:18.000000000 +0200
+++ libkworkspace/sessionmanagement.cpp	2021-10-29 17:13:36.539658992 +0200
@@ -31,6 +31,8 @@
 #include "screenlocker_interface.h"
 #include "shutdown_interface.h"
 
+#include "debug.h"
+
 // add a constructor with the service names and paths pre-populated
 class LogoutPromptIface : public OrgKdeLogoutPromptInterface
 {
@@ -175,9 +177,12 @@
 
 void SessionManagement::suspend()
 {
+    qCDebug(LIBKWORKSPACE) << "SessionManagement::suspend()";
     if (!canSuspend()) {
+        qCDebug(LIBKWORKSPACE) << "can't suspend";
         return;
     }
+    qCDebug(LIBKWORKSPACE) << "suspending...";
     SessionBackend::self()->suspend();
 }