[BUG] Headphone jack detection/functionality fail on HP OmniBook Ultra (Lunar Lake) - SSID 103C:8CDE

[pavlo0909]

Describe the bug
On the HP OmniBook Ultra Flip (Lunar Lake), the headphone jack (Realtek ALC245) fails to detect headphone insertion or output audio when using the SOF driver. While the internal speakers work, the headphone node remains in a disconnected state.

What have you tried to diagnose or workaround this issue?

• Verified with dsp_driver=1 (Legacy HDA): Headphone jack works perfectly, but internal DMIC is lost.
  

• Verified with default SOF driver: DMIC works, but Headphone jack is non-functional.
  

• Tested with kernel 6.19.14 and SOF firmware 2.14.1.
  

To Reproduce

• Boot with standard SOF driver.
  

• Plug in headphones.
  

• Check alsa-info or jack_retasking tools; Node 0x21 does not show "Jack Detect".
  

Reproduction Rate
100%

Expected behavior
Automatic switching to headphones on insertion and simultaneous support for the internal DMIC.

Impact
Showstopper. The laptop cannot be used for private listening or calls without a workaround that breaks the microphone.

Environment

Kernel: 6.19.14-200.fc43.x86_64

SOF Firmware Version: 2.14.1.1 (Build 362)

Topology: intel/sof-ipc4-tplg/sof-hda-generic-2ch.tplg

Platform: Lunar Lake (LNL)

Hardware ID: PCI SSID 103C:8CDE (Board Name: 8CDE)

Screenshots or console output
Relevant dmesg highlights:

[   28.082299] sof-audio-pci-intel-lnl 0000:00:1f.3: Booted firmware version: 2.14.1.1 (build 362)
[   28.100546] sof-audio-pci-intel-lnl 0000:00:1f.3: loading topology: intel/sof-ipc4-tplg/sof-hda-generic-2ch.tplg
[   29.034638] snd_hda_codec_alc269 ehdaudio0D0: ALC245: picked fixup for PCI SSID 103c:8cde
[   29.089742] input: sof-hda-dsp Headphone as /devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0/input32

Amplifier Errors (potential I2C/ACPI conflict):

[   14.454016] cs35l41-hda i2c-CSC3551:00-cs35l41-hda.0: Cannot add Reset/Speaker ID/SPI CS GPIO Mapping, _DSD already exists.
[   14.505248] cs35l41-hda i2c-CSC3551:00-cs35l41-hda.1: Reset line busy, assuming shared reset

Codec Pin Status (Node 0x21) while plugged in:

Node 0x21 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
  Pincap 0x0001001c: OUT HP EAPD Detect
  Pin Default 0x03211020: [Jack] HP Out at Ext Left
  Pin-ctls: 0x00:
  Unsolicited: tag=01, enabled=1
  Connection: 1
     0x02

(Note: Pin-ctls is 0x00 even when plugged in, indicating the driver hasn't enabled the output.)

alsa-info.txt

Technical Analysis
Based on the alsa-info dump provided:

The kernel correctly identifies the board and picks a fixup: ALC245: picked fixup for PCI SSID 103c:8cde.

Despite an input device being created (input: sof-hda-dsp Headphone), Node 0x21 remains at Pin-ctls: 0x00 even with headphones plugged in.

The cs35l41-hda amplifiers are reporting _DSD mapping errors, which may suggest ACPI conflicts affecting the overall HDA link initialization.