On Fri, 06 Sep 2019 11:33:43 +0200, Sergey Bostandzhyan wrote:
This notebook has 6 built in speakers for 5.1 surround support, however only two got autodetected and have also not been assigned correctly.
This patch enables all speakers and also fixes muting when headphones are plugged in.
The speaker layout is as follows:
pin 0x15 Front Left / Front Right pin 0x18 Front Center / Subwoofer pin 0x1b Rear Left / Rear Right (Surround)
The quirk will be enabled automatically on this hardware, but can also be activated manually via the model=aspire-ethos module parameter.
Caveat: pin 0x1b is shared between headphones jack and surround speakers. When headphones are plugged in, the surround speakers get muted automatically by the hardware, however all other speakers remain unmuted. Currently it's not possible to make use of the generic automute function in the driver, because such shared pins are not supported.
If we would change the pin settings to identify the pin as headphones, the surround channel and thus the ability to select 5.1 profiles would get lost.
This quirk solves the above problem by monitoring jack state of 0x1b and by connecting/disconnecting all remaining speaker pins when something gets plugged in or unplugged from the headphones jack port.
Signed-off-by: Sergey Bostandzhyan jin@mediatomb.cc
Applied now. Thanks.
Takashi