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From: Greg KH on 24 May 2010 19:30

2.6.33-stable review patch. If anyone has any objections, please let us know.

------------------
From: Daniel T Chen <crimsun(a)ubuntu.com>

commit 0ebf9e3692d640917fb792a7494d05e1f5b1058f upstream.

Reference: http://mailman.alsa-project.org/pipermail/alsa-devel/2010-May/027525.html

As reported on the mailing list, we also need to cap to the 0 dB offset
for Lenovo models, else the sound will be distorted.

Reported-and-Tested-by: Tim Starling <tstarling(a)wikimedia.org>
Signed-off-by: Daniel T Chen <crimsun(a)ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai(a)suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
sound/pci/hda/patch_conexant.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -1176,9 +1176,10 @@ static int patch_cxt5045(struct hda_code
case 0x103c:
case 0x1631:
case 0x1734:
- /* HP, Packard Bell, & Fujitsu-Siemens laptops have really bad
- * sound over 0dB on NID 0x17. Fix max PCM level to 0 dB
- * (originally it has 0x2b steps with 0dB offset 0x14)
+ case 0x17aa:
+ /* HP, Packard Bell, Fujitsu-Siemens & Lenovo laptops have
+ * really bad sound over 0dB on NID 0x17. Fix max PCM level to
+ * 0 dB (originally it has 0x2b steps with 0dB offset 0x14)
*/
snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
(0x14 << AC_AMPCAP_OFFSET_SHIFT) |


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