After you plug in the headphone, the headphone jack should change to
available yes, but according to the log in the #3, it is still available
no:
analog-output-headphones: Headphones (priority 9900, latency
offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
That is the reason the audio didn't auto switch. Looks like this is a kernel
driver issue.
please do a test:
plug in the headphone, and the headphone can't output sound, then run
'alsa-info.sh to generate alsa-info.txt and run cat
/proc/asound/card1/codec#0", now please check if headphone could work
now? and upload the alsa-info.txt and the log of 'pacmd list'.
thx.
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https://bugs.launchpad.net/bugs/1888992
Title:
[Realtek ALC892, Green Headphone Out, Front] Not detecting/switching
to front jack after plugging in headphones
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