[pulseaudio-tickets] [Bug 90480] Pulseaudio doesn't detect jack connection properly (HD AUDIO)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90480

--- Comment #13 from Raymond <superquad.vortex2 at gmail.com> ---
Early Patching
~~~~~~~~~~~~~~
When CONFIG_SND_HDA_PATCH_LOADER=y is set, you can pass a "patch" as a
firmware file for modifying the HD-audio setup before initializing the
codec.  This can work basically like the reconfiguration via sysfs in
the above, but it does it before the first codec configuration.

A patch file is a plain text file which looks like below:

------------------------------------------------------------------------
  [codec]
  0x12345678 0xabcd1234 2

  [model]
  auto

  [pincfg]
  0x12 0x411111f0

  [verb]
  0x20 0x500 0x03
  0x20 0x400 0xff

  [hint]
  jack_detect = no
------------------------------------------------------------------------

The file needs to have a line `[codec]`.  The next line should contain
three numbers indicating the codec vendor-id (0x12345678 in the
example), the codec subsystem-id (0xabcd1234) and the address (2) of
the codec.  The rest patch entries are applied to this specified codec
until another codec entry is given.  Passing 0 or a negative number to
the first or the second value will make the check of the corresponding
field be skipped.  It'll be useful for really broken devices that don't
initialize SSID properly.

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