diff options
| author | David Henningsson <david.henningsson@canonical.com> | 2015-05-28 09:40:23 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-06-10 13:42:08 -0400 |
| commit | 139cec161789dd64d0c4a1ff4dfd5eee852223af (patch) | |
| tree | 1567a7b924e2e09fd64686b9b7bb9e0d87759f85 /sound | |
| parent | 57840018977554f398f9048b14dc5f3ad937b075 (diff) | |
ALSA: hda - Disable Headphone Mic boost for ALC662
[ Upstream commit b40eda6408e94ee286cb5720cd3f409f70e01778 ]
When headphone mic boost is above zero, some 10 - 20 second delay
might occur before the headphone mic is operational.
Therefore disable the headphone mic boost control (recording gain is
sufficient even without it).
(Note: this patch is not about the headset mic, it's about the less
common mic-in only mode.)
BugLink: https://bugs.launchpad.net/bugs/1454235
Suggested-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/patch_realtek.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index fe9c111caf2a..fca6d06f4bec 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4146,6 +4146,11 @@ static void alc_fixup_headset_mode_alc662(struct hda_codec *codec, if (action == HDA_FIXUP_ACT_PRE_PROBE) { spec->parse_flags |= HDA_PINCFG_HEADSET_MIC; spec->gen.hp_mic = 1; /* Mic-in is same pin as headphone */ + + /* Disable boost for mic-in permanently. (This code is only called + from quirks that guarantee that the headphone is at NID 0x1b.) */ + snd_hda_codec_write(codec, 0x1b, 0, AC_VERB_SET_AMP_GAIN_MUTE, 0x7000); + snd_hda_override_wcaps(codec, 0x1b, get_wcaps(codec, 0x1b) & ~AC_WCAP_IN_AMP); } else alc_fixup_headset_mode(codec, fix, action); } |