[BUG] Headphone jack has no sound on ThinkPad E14 Gen 7 (21SX)

[galax028]

Describe the bug
There is no sound output from the headphone jack on the ThinkPad E14 Gen 7 (21SX). Interestingly, I also dual-boot Windows 11 and found that the headphone jack on Windows outputs sound perfectly fine. Additionally, when I connect my headphones via USB using a USB-to-3.5mm converter, it also works fine. The speakers also work fine.

To Reproduce

1. Plug any headphone into the headphone jack.
2. Try to play a sound.

Reproduction Rate
100%

Expected behavior
The sound should've played normally.

Impact
Mostly annoyance. I can indeed use the converter previously mentioned above, but sometimes I won't have vacant ports on my laptop when I'm working.

Environment

1. Branch name and commit hash of the 2 repositories: sof (firmware/topology) and linux (kernel driver).
   • Kernel: Linux 6.18.3-arch1-1
   • SOF: 2.14.1.1 (version 2025.12-1 in the Arch Linux package database)
2. Name of the topology file
   • Topology: intel/sof-ace-tplg/sof-hda-generic-2ch.tplg
3. Name of the platform(s) on which the bug is observed.
   • Platform: Arch Linux x86_64

Screenshots or console output
ALSA Information: https://alsa-project.org/db/?f=06828b86bcf1e8a9d66fda18c2a660309d971284
Full dmesg log: https://pastebin.com/wP3wPeNn
I tried to include logs from sof-logger, but it seems that my machine will not generate the trace or etrace files, even with sof_debug=1.