Re: Subject: Conexant CX20754 (ASUS X580VD) HDA: speaker pin still outputs audio despite conn=None hint - looking for the correct hdaa(4) mechanism to hard-mute a pin

On Wed Jul 22, 2026 at 3:53 PM EEST, Antonio Mata wrote:
> Laptop / hardware, for reference:
> - ASUS VivoBook Pro 15 (N580VD), motherboard X580VD, BIOS AMI X580VD.317
>   (04/2019), UEFI boot
> - Audio: Intel CM238/HM175 chipset HDA controller, Conexant CX20754 codec
>   (PCI/HDA vendor 0x1fd6), exposed as hdaa0
> - Single 3.5mm combo jack (headphones + mic), internal stereo speakers,
>   no discrete/USB sound card
>
> I'm happy to provide a full dmesg -v boot log, a devinfo -v dump, or any =
other
> diagnostic output that would help track this down. Thanks very much in
> advance for any pointers.

Could you please provide the output of dmesg after you run:

# sysctl dev.hdac.0.pindump=3D1

Make sure to run this *without* any hints applied (like the ones you
showed at the beginning of the email).

Christos