HP 255 G10 – Internal Microphone not working (ACP DMIC Node missing driver)

[KK1100]

Hello,
I have a HP 255 G10 running Windows 11 (25H2). In Device Manager I see a yellow exclamation mark for ACP DMIC Node (Hardware ID: VEN_1022 DEV_15E2). The internal microphone is not working.
I have already installed the latest Realtek HD Audio driver (SP165565, version 6.0.9862.1) and AMD chipset drivers. Windows Update optional drivers and HP Support Assistant show everything as up to date, but the ACP DMIC Node driver is still missing.
Could you please provide the correct Microphone array driver / ACP DMIC Node INF package (SPxxxxxx) for this model?
Thank you in advance.

[Paul_Tikkanen · Accepted solution]

Hi:

The microphone driver is part of the graphics driver package.

See if installing this version of the AMD graphics driver gets the microphone to work:

https://ftp.hp.com/pub/softpaq/sp152001-152500/sp152268.exe 

See this related discussion for additional details:

Microphone on HP 255 G10 V.2 - HP Support Community - 9396814

[KK1100]

Hi:
I would like to thank you for your assistance regarding the missing microphone driver on my HP 255 G10. The link you provided to the sp152268 package solved the issue, and now the internal microphone works perfectly.
I appreciate your quick and precise help.

[Paul_Tikkanen]

You're very welcome.