HP OmniBook Ultra Flip (Lunar Lake, 103C:8CDE) — ALSA headphone jack state changes but audio does not route to headphones

[GitHub issues - edited <github@alsa-project.org>]

alsa-project/alsa-ucm-conf issue #758 was edited from pavlo0909:

### Description

On the HP OmniBook Ultra Flip (Intel Lunar Lake), headphone plug/unplug is correctly detected by ALSA, but audio does not route to the headphone output automatically.

When headphones are inserted, the `Headphone Jack` control changes state correctly. However, the active output does not switch to headphones in KDE / PipeWire, and audio continues through the internal speakers. The internal speakers and internal DMIC both work normally.

### Environment

- **Manufacturer / Model:** HP OmniBook Ultra Flip Laptop 14-fh0xxx
- **Platform:** Intel Lunar Lake (LNL)
- **Codec:** Realtek ALC245
- **PCI SSID:** 103C:8CDE
- **Distribution:** Fedora 44 (KDE Plasma Desktop Edition)
- **Kernel:** 6.19.14-300.fc44.x86_64
- **Audio stack:** SOF + PipeWire + WirePlumber

### Diagnostic Results

I verified headphone jack detection at the ALSA level using:
`watch "amixer -c0 contents | grep -A2 Jack"`

The control `numid=19,iface=CARD,name='Headphone Jack'` changes state correctly:
- **Unplugged:** `values=off`
- **Plugged:** `values=on`

### Observed Behavior
- ALSA detects headphone insertion correctly, but the desktop environment (PipeWire/WirePlumber) does not automatically switch the routing or expose the port correctly.
- Audio continues through internal speakers.
- **Key Observation:** Manual routing is successful when performing the following sequence:
  1. `amixer -c0 set 'Headphone' on`
  2. `amixer -c0 set 'Speaker' off`
  3. `amixer -c0 set 'Auto-Mute Mode' Enabled`
  4. wpctl set-mute @DEFAULT_AUDIO_SINK@ 0

### Technical Details (from alsa-info)
- **Headphone node:** `Node 0x21 [Pin Complex]`
- **Pin default:** `0x03211020: [Jack] HP Out at Ext Left`
- **Topology:** `intel/sof-ipc4-tplg/sof-hda-generic-2ch.tplg`

---
**Note to Maintainers:** I have attached the full `alsa-info.txt` to this issue. This hardware was previously discussed in the SOF project https://github.com/thesofproject/linux/issues/5757where it was confirmed that HDA jack detection is functional at the driver level.
[alsa-info.txt](https://github.com/user-attachments/files/27514810/alsa-info.txt)

**Output of alsaucm dump text and spa-acp-tool lv for both the legacy and SOF case**
[sof_spa_acp.txt](https://github.com/user-attachments/files/27518858/sof_spa_acp.txt)
[sof_ucm_dump.txt](https://github.com/user-attachments/files/27518859/sof_ucm_dump.txt)
[legacy_spa_acp.txt](https://github.com/user-attachments/files/27518860/legacy_spa_acp.txt)

alsaucm dump text is only available for the SOF case; for the Legacy driver, it returns 'UCM is not supported'
```
alsaucm dump text > legacy_ucm_dump.txt
ALSA lib parser.c:305:(error_node) [error.ucm] UCM is not supported for this HDA model (HDA Intel PCH at 0x3013200000 irq 218)
ALSA lib main.c:1804:(snd_use_case_mgr_open) [error.ucm] failed to import hw:0 use case configuration -6
alsaucm: error failed to open sound card hw:0: No such device or address
```

Issue URL     : https://github.com/alsa-project/alsa-ucm-conf/issues/758
Repository URL: https://github.com/alsa-project/alsa-ucm-conf