On 01/13/2014 06:01 PM, Takashi Iwai wrote:
At Mon, 13 Jan 2014 14:52:27 +0800,
Hui Wang wrote:
On some AIO (All In One) models with the codec alc668
(Vendor ID: 0x10ec0668) on it, when we plug a headphone into the jack,
the system will switch the output to headphone and set the speaker to
automute as well as change the speaker Pin-ctls from 0x40 to 0x00,
this will bring loud noise to the headphone.
I tried to disable the corresponding EAPD, but it did not help to
eliminate the noise.
So far, the only way to eliminate the noise is preventing the speaker
from entering automute.
BugLink: https://bugs.launchpad.net/bugs/1268468
Cc: David Henningsson <david.henningsson@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
What about to use auto_mute_via_amp flag instead like the patch below?
Test has been done on the three AIO models, auto_mute_via_amp flag can
eliminate the noise and fix the problem.
I am going to send a v2 patch to use auto_mute_via_amp to replace
suppress_auto_mute.
Thanks,
Hui.
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