diff --git a/sys/dev/sound/pcm/ac97_patch.c b/sys/dev/sound/pcm/ac97_patch.c
index 1db0a989fd90..ae4c153ab57d 100644
--- a/sys/dev/sound/pcm/ac97_patch.c
+++ b/sys/dev/sound/pcm/ac97_patch.c
@@ -91,6 +91,15 @@ void alc655_patch(struct ac97_info* codec)
 	case 0x03511462:	/* MSI L725 */
 		ac97_wrcd(codec, 0x7a, ac97_rdcd(codec, 0x7a) & 0xfffd);
 		break;
+	case 0x10ca1734:
+		/*
+		 * Amilo Pro V2055 with ALC655 has phone out by default
+		 * disabled (surround on), leaving us only with internal
+		 * speakers. This should really go to mixer. We write the
+		 * Data Flow Control reg.
+		 */
+		ac97_wrcd(codec, 0x6a, ac97_rdcd(codec, 0x6a) | 0x0001);
+		break;
 	default:
 		break;
 	}