Add option to allow PC to sleep while streaming

app/cli/commandlineparser.cpp

@@ -312,6 +312,7 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     parser.addToggleOption("background-gamepad", "background gamepad input");
     parser.addToggleOption("reverse-scroll-direction", "inverted scroll direction");
     parser.addToggleOption("swap-gamepad-buttons", "swap A/B and X/Y gamepad buttons (Nintendo-style)");
+    parser.addToggleOption("keep-awake", "prevent display sleep while streaming");
     parser.addChoiceOption("capture-system-keys", "capture system key combos", m_CaptureSysKeysModeMap.keys());
     parser.addChoiceOption("video-codec", "video codec", m_VideoCodecMap.keys());
     parser.addChoiceOption("video-decoder", "video decoder", m_VideoDecoderMap.keys());
@@ -423,6 +424,9 @@ void StreamCommandLineParser::parse(const QStringList &args, StreamingPreference
     // Resolve --swap-gamepad-buttons and --no-swap-gamepad-buttons options
     preferences->swapFaceButtons = parser.getToggleOptionValue("swap-gamepad-buttons", preferences->swapFaceButtons);
 
+    // Resolve --keep-awake and --no-keep-awake options
+    preferences->keepAwake = parser.getToggleOptionValue("keep-awake", preferences->keepAwake);
+
     // Resolve --capture-system-keys option
     if (parser.isSet("capture-system-keys")) {
         preferences->captureSysKeysMode = mapValue(m_CaptureSysKeysModeMap, parser.getChoiceOptionValue("capture-system-keys"));

app/gui/SettingsView.qml

@@ -953,6 +953,23 @@ Flickable {
                     ToolTip.visible: hovered
                     ToolTip.text: qsTr("Updates your Discord status to display the name of the game you're streaming.")
                 }
+
+                CheckBox {
+                    visible: SystemProperties.hasDesktopEnvironment
+                    id: keepAwakeCheck
+                    width: parent.width
+                    text: qsTr("Keep PC awake while streaming")
+                    font.pointSize: 12
+                    checked: StreamingPreferences.keepAwake
+                    onCheckedChanged: {
+                        StreamingPreferences.keepAwake = checked
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 5000
+                    ToolTip.visible: hovered
+                    ToolTip.text: qsTr("Prevents the display from going to sleep while a stream is active.")
+                }
             }
         }
     }

app/settings/streamingpreferences.cpp

@@ -41,6 +41,7 @@
 #define SER_REVERSESCROLL "reversescroll"
 #define SER_SWAPFACEBUTTONS "swapfacebuttons"
 #define SER_CAPTURESYSKEYS "capturesyskeys"
+#define SER_KEEPAWAKE "keepawake"
 #define SER_LANGUAGE "language"
 
 #define CURRENT_DEFAULT_VER 1
@@ -95,6 +96,7 @@ void StreamingPreferences::reload()
     backgroundGamepad = settings.value(SER_BACKGROUNDGAMEPAD, false).toBool();
     reverseScrollDirection = settings.value(SER_REVERSESCROLL, false).toBool();
     swapFaceButtons = settings.value(SER_SWAPFACEBUTTONS, false).toBool();
+    keepAwake = settings.value(SER_KEEPAWAKE, true).toBool();
     captureSysKeysMode = static_cast<CaptureSysKeysMode>(settings.value(SER_CAPTURESYSKEYS,
                                                          static_cast<int>(CaptureSysKeysMode::CSK_OFF)).toInt());
     audioConfig = static_cast<AudioConfig>(settings.value(SER_AUDIOCFG,

app/settings/streamingpreferences.h

@@ -128,6 +128,7 @@ public:
     Q_PROPERTY(bool backgroundGamepad MEMBER backgroundGamepad NOTIFY backgroundGamepadChanged)
     Q_PROPERTY(bool reverseScrollDirection MEMBER reverseScrollDirection NOTIFY reverseScrollDirectionChanged)
     Q_PROPERTY(bool swapFaceButtons MEMBER swapFaceButtons NOTIFY swapFaceButtonsChanged)
+    Q_PROPERTY(bool keepAwake MEMBER keepAwake NOTIFY keepAwakeChanged)
     Q_PROPERTY(CaptureSysKeysMode captureSysKeysMode MEMBER captureSysKeysMode NOTIFY captureSysKeysModeChanged)
     Q_PROPERTY(Language language MEMBER language NOTIFY languageChanged);
 
@@ -157,6 +158,7 @@ public:
     bool backgroundGamepad;
     bool reverseScrollDirection;
     bool swapFaceButtons;
+    bool keepAwake;
     int packetSize;
     AudioConfig audioConfig;
     VideoCodecConfig videoCodecConfig;
@@ -195,6 +197,7 @@ signals:
     void reverseScrollDirectionChanged();
     void swapFaceButtonsChanged();
     void captureSysKeysModeChanged();
+    void keepAwakeChanged();
     void languageChanged();
 
 private:

app/streaming/session.cpp

@@ -1468,8 +1468,10 @@ void Session::execInternal()
     // on macOS.
     SDL_StopTextInput();
 
-    // Disable the screen saver
-    SDL_DisableScreenSaver();
+    // Disable the screen saver if requested or running as embedded platform
+    if (m_Preferences->keepAwake || !WMUtils::isRunningDesktopEnvironment()) {
+        SDL_DisableScreenSaver();
+    }
 
     // Hide Qt's fake mouse cursor on EGLFS systems
     if (QGuiApplication::platformName() == "eglfs") {