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yaml --- r: 193277 b: refs/heads/master c: 7a2e38a h: refs/heads/master i: 193275: aa27c8f v: v3
git-mirror · Apr 1, 2010 · 03aef43 · 03aef43
1 parent 84fdf74
commit 03aef43
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c35c9d5d3f03c203168e816f6f735d23f92fd6f1
+refs/heads/master: 7a2e38a555f2b1a20aaaf30f3d8ecad8faa97ea7
diff --git a/trunk/sound/pci/hda/patch_analog.c b/trunk/sound/pci/hda/patch_analog.c
@@ -1904,6 +1904,14 @@ static int patch_ad1981(struct hda_codec *codec)
 	case AD1981_THINKPAD:
 		spec->mixers[0] = ad1981_thinkpad_mixers;
 		spec->input_mux = &ad1981_thinkpad_capture_source;
+		/* set the upper-limit for mixer amp to 0dB for avoiding the
+		 * possible damage by overloading
+		 */
+		snd_hda_override_amp_caps(codec, 0x11, HDA_INPUT,
+					  (0x17 << AC_AMPCAP_OFFSET_SHIFT) |
+					  (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |
+					  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |
+					  (1 << AC_AMPCAP_MUTE_SHIFT));
 		break;
 	case AD1981_TOSHIBA:
 		spec->mixers[0] = ad1981_hp_mixers;