diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,7 @@
 find_package(KSMServerDBusInterface CONFIG REQUIRED)
 find_package(KF5ItemModels CONFIG REQUIRED)
 find_package(KF5Emoticons CONFIG REQUIRED)
+find_package(KF5 REQUIRED COMPONENTS SysGuard)
 
 find_package(KF5Baloo ${KF5_MIN_VERSION})
 set_package_properties(KF5Baloo PROPERTIES DESCRIPTION "File Searching"
diff --git a/applets/taskmanager/CMakeLists.txt b/applets/taskmanager/CMakeLists.txt
--- a/applets/taskmanager/CMakeLists.txt
+++ b/applets/taskmanager/CMakeLists.txt
@@ -28,6 +28,7 @@
                       KF5::KIOWidgets
                       KF5::KIOFileWidgets # KFilePlacesModel
                       KF5::Plasma
+                      KF5::ProcessCore
                       KF5::Service
                       KF5::WindowSystem
                       PW::LibNotificationManager)
diff --git a/applets/taskmanager/package/contents/ui/PulseAudio.qml b/applets/taskmanager/package/contents/ui/PulseAudio.qml
--- a/applets/taskmanager/package/contents/ui/PulseAudio.qml
+++ b/applets/taskmanager/package/contents/ui/PulseAudio.qml
@@ -62,7 +62,23 @@
     }
 
     function streamsForPid(pid) {
-        return findStreams("pid", pid);
+        var streams = findStreams("pid", pid);
+
+        if (streams.length === 0) {
+            for (var i = 0, length = instantiator.count; i < length; ++i) {
+                var stream = instantiator.objectAt(i);
+
+                if (stream.parentPid === -1) {
+                    stream.parentPid = backend.parentPid(stream.pid);
+                }
+
+                if (stream.parentPid === pid) {
+                    streams.push(stream);
+                }
+            }
+        }
+
+        return streams;
     }
 
     // QtObject has no default property, hence adding the Instantiator to one explicitly.
@@ -74,6 +90,8 @@
 
         delegate: QtObject {
             readonly property int pid: Client ? Client.properties["application.process.id"] : 0
+            // Determined on demand.
+            property int parentPid: -1
             readonly property string appName: Client ? Client.properties["application.name"] : ""
             readonly property bool muted: Muted
             // whether there is nothing actually going on on that stream
diff --git a/applets/taskmanager/plugin/backend.h b/applets/taskmanager/plugin/backend.h
--- a/applets/taskmanager/plugin/backend.h
+++ b/applets/taskmanager/plugin/backend.h
@@ -89,6 +89,8 @@
 
         Q_INVOKABLE void cancelHighlightWindows();
 
+        Q_INVOKABLE qint64 parentPid(qint64 pid) const;
+
         static QUrl tryDecodeApplicationsUrl(const QUrl &launcherUrl);
 
     public Q_SLOTS:
diff --git a/applets/taskmanager/plugin/backend.cpp b/applets/taskmanager/plugin/backend.cpp
--- a/applets/taskmanager/plugin/backend.cpp
+++ b/applets/taskmanager/plugin/backend.cpp
@@ -45,6 +45,9 @@
 #include <KActivities/Stats/ResultSet>
 #include <KActivities/Stats/Terms>
 
+#include <processcore/process.h>
+#include <processcore/processes.h>
+
 namespace KAStats = KActivities::Stats;
 
 using namespace KAStats;
@@ -536,6 +539,19 @@
     updateWindowHighlight();
 }
 
+qint64 Backend::parentPid(qint64 pid) const
+{
+    KSysGuard::Processes procs;
+    procs.updateOrAddProcess(pid);
+
+    KSysGuard::Process *proc = procs.getProcess(pid);
+    if (!proc) {
+        return -1;
+    }
+
+    return proc->parentPid();
+}
+
 void Backend::windowsHovered(const QVariant &_winIds, bool hovered)
 {
     m_windowsToHighlight.clear();