ALSA: hda: Fix 0 dB for Lenovo models using Conexant CX20549 (Venice)

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 <[email protected]> Cc: <[email protected]> Signed-off-by: Daniel T Chen <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
hanmiltonxing · May 11, 2010 · 0ebf9e3 · 0ebf9e3
1 parent 482c453
commit 0ebf9e3
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
@@ -1197,9 +1197,10 @@ static int patch_cxt5045(struct hda_codec *codec)
 	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) |