This laptop is problematic to get working with Linux. I finally found the GRUB boot parameters to get it working fully.
Before, it wouldnt shut off after halting, and the sound would echo endlessly.
I found in my research that HPs of that era had odd BIOSs.
I played with it for a while and found that adding:
to the boot parameters fixes it. I'm posting this so anyone else with this problem can find it on a search.