diff --git a/src/add-ons/kernel/drivers/audio/ac97/auich/auich.c b/src/add-ons/kernel/drivers/audio/ac97/auich/auich.c
index 6aba1e99e2..dc6288cd4a 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/auich/auich.c
+++ b/src/add-ons/kernel/drivers/audio/ac97/auich/auich.c
@@ -452,8 +452,7 @@ auich_int(void *arg)
 			auich_reg_write_32(&card->config, AUICH_REG_GLOB_STA, sta);
 		}
 	} else {
-		TRACE(("interrupt masked %lx, ", card->interrupt_mask));
-		TRACE(("sta %lx\n", sta));
+		dprintf("interrupt masked %lx, sta %lx\n", card->interrupt_mask, sta);
 	}
 	
 	if (gotone)
@@ -697,6 +696,11 @@ auich_setup(auich_dev * card)
 	PRINT(("codec vendor id      = %#08lx\n", card->config.ac97->codec_id));
 	PRINT(("codec description     = %s\n", card->config.ac97->codec_info));
 	PRINT(("codec 3d enhancement = %s\n", card->config.ac97->codec_3d_stereo_enhancement));
+
+	// disable channels
+	auich_reg_write_8(&card->config, AUICH_REG_PO_BASE + AUICH_REG_X_CR, 0);
+	auich_reg_write_8(&card->config, AUICH_REG_PI_BASE + AUICH_REG_X_CR, 0);
+	auich_reg_write_8(&card->config, AUICH_REG_MC_BASE + AUICH_REG_X_CR, 0);
 	
 	if (current_settings.use_thread) {
 		int_thread_id = spawn_kernel_thread(auich_int_thread, "auich interrupt poller", B_REAL_TIME_PRIORITY, card);
diff --git a/src/add-ons/kernel/drivers/audio/ac97/auich/io.c b/src/add-ons/kernel/drivers/audio/ac97/auich/io.c
index 20e859e525..3d7e25d391 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/auich/io.c
+++ b/src/add-ons/kernel/drivers/audio/ac97/auich/io.c
@@ -122,7 +122,7 @@ auich_codec_read(device_config *config, uint8 regno)
 {
 	ASSERT(regno >= 0);
 	ASSERT(((config->type & TYPE_ICH4) != 0 && regno <= 511) || regno <= 255);
-	if(auich_codec_wait(config)!=B_OK) {
+	if (auich_codec_wait(config)!=B_OK) {
 		PRINT(("codec busy (2)\n"));
 		return -1;
 	}
@@ -138,7 +138,7 @@ auich_codec_write(device_config *config, uint8 regno, uint16 value)
 {
 	ASSERT(regno >= 0);
 	ASSERT(((config->type & TYPE_ICH4) != 0 && regno <= 511) || regno <= 255);
-	if(auich_codec_wait(config)!=B_OK) {
+	if (auich_codec_wait(config)!=B_OK) {
 		PRINT(("codec busy (4)\n"));
 		return;
 	}