[BUG] Acer Nitro V 15 (ANV15-51): ALC245 Pin 0x19 unsolicited jack event storm & pcm31 deep buffer IPC failure on resume

Hardware & Environment

• Laptop Model: Acer Nitro V 15 (ANV15-51)
• Motherboard: Sportage_RTH (BIOS V1.60)
• Audio Controller: Intel Corporation Raptor Lake-P/U/H cAVS [8086:51ca] (rev 01)
  • Subsystem: Acer Incorporated [1025:171e]
  • Driver: sof-audio-pci-intel-tgl / skl_hda_dsp_generic
• Audio Codec: Realtek ALC245 (10ec:0245)
  • Subsystem ID: 1025:171e
  • Codec Address: 0
• Kernel: 7.2.5-3-omarchy x86_64
• SOF Topology: intel/sof-tplg/sof-hda-generic-2ch.tplg
• SOF Firmware: intel/sof/sof-rpl.ri (version 2:2:0-57864)

Summary of the Problem

On this laptop, after waking from suspend (lid close and open), two distinct audio issues occur:

1. Intel SOF IPC error on PCM31 (HDA Analog Deep Buffer): The driver fails with IPC -22 (EINVAL).
2. Infinite Jack Event Storm on Realtek Pin 0x19: The kernel ALC269/ALC245 quirk applies a pin configuration that marks Pin 0x19 as a "Headset Mic Jack". However, the physical hardware has no jack presence detection circuit on this pin (BIOS reports NO_PRESENCE). The floating pin triggers unsolicited events continuously (~200 interrupts/sec), causing irq/197-AudioDSP to spike and WirePlumber/PipeWire event loops to saturate IPC sockets and peg 1 CPU core at 100%.

Diagnostic Details & Evidence

1. Pin 0x19 Quirk Mismatch

Reading /sys/class/sound/hwC1D0/init_pin_configs (from BIOS):

0x19 0x411111f0

• 0x4 = Not connected / disabled
• Misc = NO_PRESENCE

Reading /sys/class/sound/hwC1D0/driver_pin_configs (from kernel quirk table):

0x19 0x03a1103c

• 0x0 = External Jack, 0xa = Mic In, Unsolicited: tag=02, enabled=1

2. Event Storm Reproduction

Running amixer -c 1 events during the issue shows hundreds of rapid toggle events per second:

event value: numid=11,iface=CARD,name='Headset Mic Jack'
event value: numid=11,iface=CARD,name='Headset Mic Jack'
event value: numid=11,iface=CARD,name='Headset Mic Jack'
... (repeats continuously ~200 times/second)

Overriding Pin 0x19 back to 0x411111f0 via sysfs user_pin_configs immediately stops the event storm and drops CPU usage back to 0%.

3. Intel SOF IPC Error on Wake-up

Kernel log (dmesg / journalctl -k):

sof-audio-pci-intel-tgl 0000:00:1f.3: ipc tx error for 0x60010000 (msg/reply size: 108/20): -22
sof-audio-pci-intel-tgl 0000:00:1f.3: sof_ipc3_pcm_hw_params: pcm31 (HDA Analog Deep Buffer), dir 0: STREAM_PCM_PARAMS ipc failed for stream_tag 2
sof-audio-pci-intel-tgl 0000:00:1f.3: ASoC error (-22): at snd_soc_pcm_component_prepare() on 0000:00:1f.3

Steps to Reproduce

1. Boot system (audio playback through speakers works normally).
2. Suspend system (close laptop lid or systemctl suspend).
3. Resume system (open laptop lid).
4. Run top: observe irq/*-AudioDSP consuming ~20% CPU and wireplumber consuming 100% of 1 CPU core.
5. Run amixer -c 1 events: observe uninterrupted torrent of Headset Mic Jack events.

Proposed / Tested Fix

1. For Realtek ALC245: Add a model quirk for Acer Nitro ANV15-51 (1025:171e) ensuring Pin 0x19 remains 0x411111f0 (disabled) without enabling unsolicited jack detection.
2. For Intel SOF: Address the STREAM_PCM_PARAMS parameter negotiation failure for pcm31 (HDA Analog Deep Buffer) on wake-up.

(Full alsa-info diagnostic output is attached.)

alsa-info.txt