Re: [PATCH 3/3] soundwire: dmi-quirks: Disable ghost Realtek devices

[Pierre-Louis Bossart]

On 5/20/26 18:36, Charles Keepax wrote:
> Many systems ship with a Realtek audio codec in the ACPI that doesn't
> physically exist in the system. This confuses the newer function
> topology system that creates the soundcard, as it builds the card based
> on the ACPI information.
> 
> Whilst we are working with the laptop vendors to try and stop this
> happening there are quite a few systems where this has shipped. Add a
> quirk to disable this "ghost" device.
> 
> Currently this patch should cover:
>  - Asus UX5406AA
>  - Lenovo Yoga Pro 9i (83SF)
>  - Lenovo Yoga Slim 7 Ultra (83QK)

if this broken ACPI stuff works for Windows then it'll be an uphill battle...

Could we filter instead those 'ghost' devices if they fail to appear in the new ACPI table that describes all the endpoints and card topology?