diff --git a/ChangeLog b/ChangeLog
index 695de273..2606c337 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,10 +4,14 @@
 
 2007-08-21 Stephane Letz  <letz@grame.fr>
 
-	* Automatic server launch. Removes unneeded 'volatile' for JackTransportEngine::fWriteCounter.
+	* Fix backend port alias management (renaming in system:xxx).
 
 2007-08-20 Stephane Letz  <letz@grame.fr>
 
+	* Automatic server launch. Removes unneeded 'volatile' for JackTransportEngine::fWriteCounter.
+
+2007-08-19 Stephane Letz  <letz@grame.fr>
+
 	* Add "systemic" latencies management in CoreAudio driver.
 
 2007-08-16 Stephane Letz  <letz@grame.fr>
diff --git a/common/JackAudioDriver.cpp b/common/JackAudioDriver.cpp
index ddff1c81..878f9bc9 100644
--- a/common/JackAudioDriver.cpp
+++ b/common/JackAudioDriver.cpp
@@ -78,7 +78,7 @@ int JackAudioDriver::Attach()
 {
     JackPort* port;
     jack_port_id_t port_index;
-    char buf[JACK_PORT_NAME_SIZE];
+    char buf[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;
     int i;
 
@@ -224,6 +224,27 @@ int JackAudioDriver::ProcessSync()
     return 0;
 }
 
+void JackAudioDriver::RenamePorts()
+{
+	JackPort* port;
+	char buf[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
+	int i;
+	
+	for (i = 0; i < fCaptureChannels; i++) {
+		port = fGraphManager->GetPort(fCapturePortList[i]);
+		port->SetAlias(port->GetName());
+		snprintf(buf, sizeof(buf) - 1, "system:capture_%d", i + 1);
+		port->SetFullName(buf);
+    }
+
+    for (i = 0; i < fPlaybackChannels; i++) {
+		port = fGraphManager->GetPort(fPlaybackPortList[i]);
+		port->SetAlias(port->GetName());
+		snprintf(buf, sizeof(buf) - 1, "system:playback_%d", i + 1);
+		port->SetFullName(buf);
+    }
+}
+
 void JackAudioDriver::NotifyXRun(jack_time_t callback_usecs)
 {
     fEngine->NotifyXRun(callback_usecs);
diff --git a/common/JackAudioDriver.h b/common/JackAudioDriver.h
index d3c86da6..5ea6432e 100644
--- a/common/JackAudioDriver.h
+++ b/common/JackAudioDriver.h
@@ -55,6 +55,8 @@ class EXPORT JackAudioDriver : public JackDriver
 
         int ProcessAsync();
         int ProcessSync();
+		
+		void RenamePorts();
 
     public:
 
diff --git a/common/JackDriver.h b/common/JackDriver.h
index 14472457..2024241a 100644
--- a/common/JackDriver.h
+++ b/common/JackDriver.h
@@ -65,9 +65,12 @@ class EXPORT JackDriverInterface
 
         virtual int Attach() = 0;
         virtual int Detach() = 0;
+		
+		virtual void RenamePorts() = 0;
 
         virtual int Read() = 0;
         virtual int Write() = 0;
+		
         virtual int Start() = 0;
         virtual int Stop() = 0;
         virtual int SetBufferSize(jack_nframes_t buffer_size) = 0;
diff --git a/common/JackFreewheelDriver.h b/common/JackFreewheelDriver.h
index f2f54d5a..867c310b 100644
--- a/common/JackFreewheelDriver.h
+++ b/common/JackFreewheelDriver.h
@@ -44,8 +44,11 @@ class JackFreewheelDriver : public JackDriver
         {
             return false;
         }
-
-        int Process();
+		
+		void RenamePorts()
+		{}
+		
+		int Process();
 };
 
 } // end of namespace
diff --git a/common/JackPort.cpp b/common/JackPort.cpp
index 8e975497..a7848433 100644
--- a/common/JackPort.cpp
+++ b/common/JackPort.cpp
@@ -52,6 +52,8 @@ void JackPort::Release()
     fLocked = false;
     fLatency = 0;
     fTied = NO_PORT;
+	fAlias1[0] = '\0';
+	fAlias2[0] = '\0';
 }
 
 bool JackPort::IsUsed() const
@@ -184,6 +186,13 @@ int JackPort::SetName(const char* new_name)
     return 0;
 }
 
+int JackPort::SetFullName(const char* new_name)
+{
+	assert(strlen(new_name) < JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE);
+	strcpy(fName, new_name);
+    return 0;
+}
+
 bool JackPort::NameEquals(const char* target)
 {
 	return (strcmp(fName, target) == 0 
diff --git a/common/JackPort.h b/common/JackPort.h
index 4fa5b430..45748f61 100644
--- a/common/JackPort.h
+++ b/common/JackPort.h
@@ -78,6 +78,7 @@ class JackPort
         const char* GetName() const;
         const char* GetShortName() const;
         int	SetName(const char* name);
+		int SetFullName(const char* new_name);
 		
 		int GetAliases(char* const aliases[2]);
 		int SetAlias(const char* alias);
diff --git a/common/JackServer.cpp b/common/JackServer.cpp
index b4e2926d..99cae9a7 100644
--- a/common/JackServer.cpp
+++ b/common/JackServer.cpp
@@ -122,6 +122,8 @@ int JackServer::Open(jack_driver_desc_t* driver_desc, JSList* driver_params)
         jack_error("Cannot attach audio driver");
         return -1;
     }
+	
+	fAudioDriver->RenamePorts();
 
     if (fLoopback > 0 && fLoopbackDriver->Attach() != 0) {
         jack_error("Cannot attach loopback driver");
diff --git a/common/JackThreadedDriver.h b/common/JackThreadedDriver.h
index 60d302d6..c5aa0b3f 100644
--- a/common/JackThreadedDriver.h
+++ b/common/JackThreadedDriver.h
@@ -82,6 +82,11 @@ class JackThreadedDriver : public JackDriverClientInterface, public JackRunnable
         {
             return fDriver->Detach();
         }
+		
+		virtual void RenamePorts()
+		{
+            fDriver->RenamePorts();
+        }
 
         virtual int Read()
         {
diff --git a/linux/alsa/JackAlsaDriver.cpp b/linux/alsa/JackAlsaDriver.cpp
index 59a1628a..74bf7cdd 100644
--- a/linux/alsa/JackAlsaDriver.cpp
+++ b/linux/alsa/JackAlsaDriver.cpp
@@ -2074,7 +2074,7 @@ int JackAlsaDriver::Attach()
     int port_index;
     unsigned long port_flags;
 
-    char buf[JACK_PORT_NAME_SIZE];
+    char buf[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
 
     port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;
 
diff --git a/macosx/JackCoreAudioDriver.cpp b/macosx/JackCoreAudioDriver.cpp
index 6ede9ead..e6ea8928 100644
--- a/macosx/JackCoreAudioDriver.cpp
+++ b/macosx/JackCoreAudioDriver.cpp
@@ -800,7 +800,7 @@ int JackCoreAudioDriver::Attach()
     UInt32 size;
     Boolean isWritable;
     char channel_name[64];
-    char buf[JACK_PORT_NAME_SIZE];
+    char buf[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     unsigned long port_flags = JackPortIsOutput | JackPortIsPhysical | JackPortIsTerminal;
 
     JackLog("JackCoreAudioDriver::Attach fBufferSize %ld fSampleRate %ld\n", fEngineControl->fBufferSize, fEngineControl->fSampleRate);