diff -up webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.cpp.volume webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.cpp
--- webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.cpp.volume	2014-02-27 09:26:25.967068707 +0100
+++ webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.cpp	2014-02-27 09:27:56.074225330 +0100
@@ -245,6 +245,7 @@ HTMLMediaElement::HTMLMediaElement(const
     , m_readyState(HAVE_NOTHING)
     , m_readyStateMaximum(HAVE_NOTHING)
     , m_volume(1.0f)
+    , m_volumeInitialized(false)
     , m_lastSeekTime(0)
     , m_previousProgressTime(numeric_limits<double>::max())
     , m_lastTimeUpdateEventWallTime(0)
@@ -2665,6 +2666,7 @@ void HTMLMediaElement::setVolume(float v
     
     if (m_volume != vol) {
         m_volume = vol;
+        m_volumeInitialized = true;
         updateVolume();
         scheduleEvent(eventNames().volumechangeEvent);
     }
@@ -3758,7 +3760,8 @@ void HTMLMediaElement::updateVolume()
         }
 
         m_player->setMuted(shouldMute);
-        m_player->setVolume(m_volume * volumeMultiplier);
+        if (m_volumeInitialized)
+            m_player->setVolume(m_volume * volumeMultiplier);
     }
 
     if (hasMediaControls())
@@ -4792,6 +4795,11 @@ void HTMLMediaElement::mediaPlayerPlay()
     play();
 }
 
+bool HTMLMediaElement::mediaPlayerPlatformVolumeConfigurationRequired() const
+{
+    return !m_volumeInitialized;
+}
+
 bool HTMLMediaElement::mediaPlayerIsPaused() const
 {
     return paused();
diff -up webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.h.volume webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.h
--- webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.h.volume	2014-02-27 09:26:51.671398653 +0100
+++ webkitgtk-2.0.4/Source/WebCore/html/HTMLMediaElement.h	2014-02-27 09:29:44.623618657 +0100
@@ -474,6 +474,7 @@ private:
     virtual void mediaPlayerSetSize(const IntSize&) OVERRIDE;
     virtual void mediaPlayerPause() OVERRIDE;
     virtual void mediaPlayerPlay() OVERRIDE;
+    virtual bool mediaPlayerPlatformVolumeConfigurationRequired() const OVERRIDE;
     virtual bool mediaPlayerIsPaused() const OVERRIDE;
     virtual bool mediaPlayerIsLooping() const OVERRIDE;
     virtual HostWindow* mediaPlayerHostWindow() OVERRIDE;
@@ -606,6 +607,7 @@ private:
     RefPtr<MediaError> m_error;
 
     float m_volume;
+    bool m_volumeInitialized;
     float m_lastSeekTime;
     
     unsigned m_previousProgress;
diff -up webkitgtk-2.0.4/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp.volume webkitgtk-2.0.4/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp
--- webkitgtk-2.0.4/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp.volume	2014-02-27 09:27:38.559000504 +0100
+++ webkitgtk-2.0.4/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp	2014-02-27 09:27:56.075225348 +0100
@@ -72,6 +72,7 @@ static int greatestCommonDivisor(int a,
 static void mediaPlayerPrivateVolumeChangedCallback(GObject*, GParamSpec*, MediaPlayerPrivateGStreamerBase* player)
 {
     // This is called when m_volumeElement receives the notify::volume signal.
+    LOG_MEDIA_MESSAGE("Volume changed to: %f", player->volume());
     player->volumeChanged();
 }
 
@@ -208,6 +209,7 @@ void MediaPlayerPrivateGStreamerBase::se
     if (!m_volumeElement)
         return;
 
+    LOG_MEDIA_MESSAGE("Setting volume: %f", volume);
     gst_stream_volume_set_volume(m_volumeElement.get(), GST_STREAM_VOLUME_FORMAT_CUBIC, static_cast<double>(volume));
 }
 
@@ -479,7 +481,16 @@ void MediaPlayerPrivateGStreamerBase::se
     ASSERT(!m_volumeElement);
     m_volumeElement = volume;
 
-    g_object_set(m_volumeElement.get(), "mute", m_player->muted(), "volume", m_player->volume(), NULL);
+    // We don't set the initial volume because we trust the sink to keep it for us. See
+    // https://bugs.webkit.org/show_bug.cgi?id=118974 for more information.
+    if (!m_player->platformVolumeConfigurationRequired()) {
+        LOG_MEDIA_MESSAGE("Setting stream volume to %f", m_player->volume());
+        g_object_set(m_volumeElement.get(), "volume", m_player->volume(), NULL);
+    } else
+        LOG_MEDIA_MESSAGE("Not setting stream volume, trusting system one");
+
+    LOG_MEDIA_MESSAGE("Setting stream muted %d",  m_player->muted());
+    g_object_set(m_volumeElement.get(), "mute", m_player->muted(), NULL);
 
     m_volumeSignalHandler = g_signal_connect(m_volumeElement.get(), "notify::volume", G_CALLBACK(mediaPlayerPrivateVolumeChangedCallback), this);
     m_muteSignalHandler = g_signal_connect(m_volumeElement.get(), "notify::mute", G_CALLBACK(mediaPlayerPrivateMuteChangedCallback), this);
diff -up webkitgtk-2.0.4/Source/WebCore/platform/graphics/MediaPlayer.h.volume webkitgtk-2.0.4/Source/WebCore/platform/graphics/MediaPlayer.h
--- webkitgtk-2.0.4/Source/WebCore/platform/graphics/MediaPlayer.h.volume	2014-02-27 09:27:17.663732299 +0100
+++ webkitgtk-2.0.4/Source/WebCore/platform/graphics/MediaPlayer.h	2014-02-27 09:30:47.663427811 +0100
@@ -209,6 +209,7 @@ public:
     virtual void mediaPlayerSetSize(const IntSize&) { }
     virtual void mediaPlayerPause() { }
     virtual void mediaPlayerPlay() { }
+    virtual bool mediaPlayerPlatformVolumeConfigurationRequired() const { return false; }
     virtual bool mediaPlayerIsPaused() const { return true; }
     virtual bool mediaPlayerIsLooping() const { return false; }
     virtual HostWindow* mediaPlayerHostWindow() { return 0; }
@@ -329,6 +330,7 @@ public:
 
     float volume() const;
     void setVolume(float);
+    bool platformVolumeConfigurationRequired() const { return m_mediaPlayerClient->mediaPlayerPlatformVolumeConfigurationRequired(); }
 
     bool muted() const;
     void setMuted(bool);