Comment 35 for bug 1428121

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/plain/Documentation/sound/alsa/HD-Audio.txt

Hint Strings
~~~~~~~~~~~~
The codec parser have several switches and adjustment knobs for
matching better with the actual codec or device behavior. Many of
them can be adjusted dynamically via "hints" strings as mentioned in
the section above.

try specify hint

stick_stream = false for haswell hdmi

- sticky_stream (bool): keep the PCM format, stream tag and ID as long
  as possible; default true

- trigger_sense (bool): indicates that the jack detection needs the
  explicit call of AC_VERB_SET_PIN_SENSE verb

- indep_hp (bool): provide the independent headphone PCM stream and
  the corresponding mixer control, if available

For alc892

trigger_sense = false
indepdent_hp = true