System
Laptop: Acer Aspire A14-52M, BIOS V1.32 (2025-11-27)
CPU: Intel Core Ultra 200V "Lunar Lake" (family 6, model 189 / 0xBD)
Kernel: 7.2.6-1-cachyos (CachyOS, Arch-based), x86_64
sof-firmware: 2025.12.2-1
Audio: sof-audio-pci-intel-lnl → Realtek ALC245 codec
Codec Subsystem Id (from /proc/asound/card0/codec#0): 0x1025184e
PCI audio controller subsystem (lspci -vv -s 00:1f.3): 1025:184e (Acer)
Symptom
The 3.5mm headphone jack is never detected as plugged in, even after repeatedly unplugging/reseating the connector. Internal speakers work correctly.
amixer -c 0 cget numid=8 ("Headphone Jack") reads values=off permanently, regardless of physical plug state.
Manually forcing the ALSA "Headphones" sink/profile (pactl set-card-profile ... "HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1)") produces no audio output either — this isn't only a jack-sense/detection problem, the playback path itself appears non-functional when forced.
dmesg at boot shows: snd_hda_codec_alc269 ehdaudio0D0: ALC245: picked fixup for PCI SSID ... with an empty fixup name, i.e. no matching quirk table entry is applied for this SSID.
Related
This looks like the same class of bug as #5757 (HP OmniBook Ultra, Lunar Lake, ALC245) — same driver stack (SOF), same codec, same "jack stuck undetected, speakers fine" symptom. That report notes the jack works under the legacy HDA driver instead of SOF, which may be a useful data point here too — I have not yet tested snd_intel_dspcfg.dsp_driver=1 on this machine but can if useful.
Diagnostic bundle
Full alsa-info.sh output (codec pin/verb dump, amixer, ACPI, kernel info) attached / linked below: alsa-info-output.txt
Ask
Given the codec reports a real, laptop-specific subsystem ID (1025:184e, not blank), would it be feasible to add a pin-config/fixup quirk keyed on this SSID, similar to recent ALC245 quirks landed for other Acer models (e.g. Acer Nitro ANV16-42, Acer Predator PH16-71)? Happy to test patches or provide more diagnostics (hda-jack-retask pin experiments, dmesg with dyndbg, etc.).
System
Laptop: Acer Aspire A14-52M, BIOS V1.32 (2025-11-27)
CPU: Intel Core Ultra 200V "Lunar Lake" (family 6, model 189 / 0xBD)
Kernel: 7.2.6-1-cachyos (CachyOS, Arch-based), x86_64
sof-firmware: 2025.12.2-1
Audio: sof-audio-pci-intel-lnl → Realtek ALC245 codec
Codec Subsystem Id (from /proc/asound/card0/codec#0): 0x1025184e
PCI audio controller subsystem (lspci -vv -s 00:1f.3): 1025:184e (Acer)
Symptom
The 3.5mm headphone jack is never detected as plugged in, even after repeatedly unplugging/reseating the connector. Internal speakers work correctly.
amixer -c 0 cget numid=8 ("Headphone Jack") reads values=off permanently, regardless of physical plug state.
Manually forcing the ALSA "Headphones" sink/profile (pactl set-card-profile ... "HiFi (HDMI1, HDMI2, HDMI3, Headphones, Mic1)") produces no audio output either — this isn't only a jack-sense/detection problem, the playback path itself appears non-functional when forced.
dmesg at boot shows: snd_hda_codec_alc269 ehdaudio0D0: ALC245: picked fixup for PCI SSID ... with an empty fixup name, i.e. no matching quirk table entry is applied for this SSID.
Related
This looks like the same class of bug as #5757 (HP OmniBook Ultra, Lunar Lake, ALC245) — same driver stack (SOF), same codec, same "jack stuck undetected, speakers fine" symptom. That report notes the jack works under the legacy HDA driver instead of SOF, which may be a useful data point here too — I have not yet tested snd_intel_dspcfg.dsp_driver=1 on this machine but can if useful.
Diagnostic bundle
Full alsa-info.sh output (codec pin/verb dump, amixer, ACPI, kernel info) attached / linked below: alsa-info-output.txt
Ask
Given the codec reports a real, laptop-specific subsystem ID (1025:184e, not blank), would it be feasible to add a pin-config/fixup quirk keyed on this SSID, similar to recent ALC245 quirks landed for other Acer models (e.g. Acer Nitro ANV16-42, Acer Predator PH16-71)? Happy to test patches or provide more diagnostics (hda-jack-retask pin experiments, dmesg with dyndbg, etc.).