Index: src/sys/dev/sound/pcm/ac97.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/ac97.c,v
retrieving revision 1.53.2.3
diff -u -r1.53.2.3 ac97.c
--- src/sys/dev/sound/pcm/ac97.c	9 Jan 2006 02:06:42 -0000	1.53.2.3
+++ src/sys/dev/sound/pcm/ac97.c	7 Apr 2007 16:17:28 -0000
@@ -148,7 +148,7 @@
 	{ 0x414c4730, 0x0f, 0, "ALC101",	0 },
 	{ 0x414c4710, 0x0f, 0, "ALC200", 	0 },
 	{ 0x414c4740, 0x0f, 0, "ALC202", 	0 },
-	{ 0x414c4720, 0x0f, 0, "ALC650", 	0 },
+	{ 0x414c4720, 0x0f, 0, "ALC650", 	alc650_patch },
 	{ 0x414c4752, 0x0f, 0, "ALC250",	0 },
 	{ 0x414c4760, 0x0f, 0, "ALC655",	0 },
 	{ 0x414c4770, 0x0f, 0, "ALC203",	0 },
Index: src/sys/dev/sound/pcm/ac97_patch.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/ac97_patch.c,v
retrieving revision 1.3.2.1
diff -u -r1.3.2.1 ac97_patch.c
--- src/sys/dev/sound/pcm/ac97_patch.c	30 Dec 2005 19:55:54 -0000	1.3.2.1
+++ src/sys/dev/sound/pcm/ac97_patch.c	7 Apr 2007 16:17:28 -0000
@@ -46,6 +46,12 @@
 	ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420);
 }
 
+void alc650_patch(struct ac97_info* codec)
+{
+	ac97_wrcd(codec, 0x64, 0x0808);
+	ac97_wrcd(codec, 0x66, 0x0808);
+}
+
 void cmi9739_patch(struct ac97_info* codec)
 {
 	/*
Index: src/sys/dev/sound/pcm/ac97_patch.h
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/ac97_patch.h,v
retrieving revision 1.3.2.1
diff -u -r1.3.2.1 ac97_patch.h
--- src/sys/dev/sound/pcm/ac97_patch.h	30 Dec 2005 19:55:54 -0000	1.3.2.1
+++ src/sys/dev/sound/pcm/ac97_patch.h	7 Apr 2007 16:17:28 -0000
@@ -29,4 +29,5 @@
 
 void ad1886_patch(struct ac97_info*);
 void ad198x_patch(struct ac97_info*);
+void alc650_patch(struct ac97_info*);
 void cmi9739_patch(struct ac97_info*);