diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c b/src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c
index 5bb9f7c219..c0c73bd828 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c
@@ -33,6 +33,8 @@
 
 //#define DEBUG 1
 
+#define REVERSE_EAMP_POLARITY 0
+
 #include "debug.h"
 #include "io.h"
 
@@ -124,6 +126,10 @@ ac97_amp_enable(bool yesno)
 		default:
 		{
 			LOG(("powerdown register was = %#04x\n",ich_codec_read(config->codecoffset + AC97_POWERDOWN)));
+			#if REVERSE_EAMP_POLARITY
+				yesno = !yesno;
+				LOG(("using reverse eamp polarity\n"));
+			#endif
 			if (yesno)
 				ich_codec_write(config->codecoffset + AC97_POWERDOWN, ich_codec_read(AC97_POWERDOWN) & ~0x8000); /* switch on (low active) */
 			else
diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
index 0922b726ca..31ec330b78 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
@@ -39,7 +39,7 @@
  * DEBUG == 2, TRACE & LOG, PRINT with snooze()
  */
 #ifndef DEBUG
-	#define DEBUG 0
+	#define DEBUG 1
 #endif
 
 #undef PRINT
diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/ich.c b/src/add-ons/kernel/drivers/audio/ac97/ich/ich.c
index 481033890b..ff59dd9663 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/ich.c
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/ich.c
@@ -519,8 +519,8 @@ init_driver(void)
 	ac97_init();
 	ac97_amp_enable(true);
 
-	LOG(("codec vendor id = %#08x\n",ac97_get_vendor_id()));
-	LOG(("codec descripton = %s\n",ac97_get_vendor_id_description()));
+	LOG(("codec vendor id      = %#08x\n",ac97_get_vendor_id()));
+	LOG(("codec descripton     = %s\n",ac97_get_vendor_id_description()));
 	LOG(("codec 3d enhancement = %s\n",ac97_get_3d_stereo_enhancement()));
 
 	/* reset all channels */
@@ -546,12 +546,27 @@ init_driver(void)
 		int_thread_id = spawn_kernel_thread(int_thread, "ich_ac97 interrupt poller", B_REAL_TIME_PRIORITY, 0);
 		resume_thread(int_thread_id);
 	}
+	
+	LOG(("codec master output = %#04x\n",ich_codec_read(config->codecoffset + 0x02)));
+	LOG(("codec aux output    = %#04x\n",ich_codec_read(config->codecoffset + 0x04)));
+	LOG(("codec mono output   = %#04x\n",ich_codec_read(config->codecoffset + 0x06)));
+	LOG(("codec pcm output    = %#04x\n",ich_codec_read(config->codecoffset + 0x18)));
 
+	LOG(("writing codec registers\n"));
 	/* enable master output */
 	ich_codec_write(config->codecoffset + 0x02, 0x0000);
+	/* enable aux output */
+	ich_codec_write(config->codecoffset + 0x04, 0x0000);
+	/* enable mono output */
+	ich_codec_write(config->codecoffset + 0x06, 0x0000);
 	/* enable pcm output */
 	ich_codec_write(config->codecoffset + 0x18, 0x0404);
 
+	LOG(("codec master output = %#04x\n",ich_codec_read(config->codecoffset + 0x02)));
+	LOG(("codec aux output    = %#04x\n",ich_codec_read(config->codecoffset + 0x04)));
+	LOG(("codec mono output   = %#04x\n",ich_codec_read(config->codecoffset + 0x06)));
+	LOG(("codec pcm output    = %#04x\n",ich_codec_read(config->codecoffset + 0x18)));
+
 #if 0
 	/* enable pcm input */
 	ich_codec_write(config->codecoffset + 0x10, 0x0000);
diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/ich.h b/src/add-ons/kernel/drivers/audio/ac97/ich/ich.h
index 873be51ddd..cb59ff278f 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/ich.h
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/ich.h
@@ -30,7 +30,7 @@
 
 #include "hardware.h"
 
-#define VERSION "Version 1.4, Copyright (c) 2002 Marcus Overhagen, compiled on " ## __DATE__ ## " " ## __TIME__ 
+#define VERSION "Version 1.5, Copyright (c) 2002 Marcus Overhagen, compiled on " ## __DATE__ ## " " ## __TIME__ 
 #define DRIVER_NAME "ich_ac97"
 
 #define BUFFER_SIZE		2048