Bug 216756 - ALC897 Headphone and Mic cannot used at same time on a TRRS jack
Summary: ALC897 Headphone and Mic cannot used at same time on a TRRS jack
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-11-30 10:15 UTC by Edward P
Modified: 2022-12-07 01:06 UTC (History)
0 users

See Also:
Kernel Version: 6.0
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Alsamixer (384.82 KB, image/png)
2022-11-30 10:15 UTC, Edward P 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Edward P 2022-11-30 10:15:14 UTC 
Created attachment 303332 [details]
Alsamixer

alsa-info.sh output: http://alsa-project.org/db/?f=22a84e3def72fe5ba376ddf1415fb27d5154fa6b

My device has a TRRS jack at front and a line out at back.

I saw there's a "Headphone Mic Jack Mode" in alsa-mixer, when switched to "Mic-in"
, Mic is usable but no sound in Headphone;
When switched to "Headphone Out", headphone can work, but no sound in microphone.
Comment 1 Edward P 2022-11-30 15:33:33 UTC 
It seems that 0x1b is a "Pin Complex" node but be used as a "[Jack] HP Out at Ext Front"
Comment 2 Edward P 2022-12-07 01:06:15 UTC 
Patch submitted to the Alsa-devel.
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