The "ACP HDA Node" is a component of the AMD Audio Co-Processor (ACP)
If you can tell me the (e.g., Aspire 3-15, Ryzen 5 5500U), I can help you find the specific driver page you need. acp hda node
On Linux systems, issues related to ACP HDA Node typically manifest as missing audio devices, “Dummy Output” appearing instead of real audio hardware, or specific features like digital microphones not functioning. The "ACP HDA Node" is a component of