Okay, so I haven't tested my headset yet (mostly because the data the Retrovol program is giving me makes me absolutely terrified to try to), but I'm not getting any sound over my HDMI. Video's working just fine. I'm not sure if I should be looking at an insufficient graphics driver, or if there's just a setting I need to slap around a little. But Retrovol is telling me that my volume is at 65295%. Which makes me concerned that, if I try to hook up my headset, my computer's going to explode.
Okay, that's an exaggeration, but you get the idea. I like my eardrums in one piece each.
Hexcore AMD
Radeon RX 570 via HDMI
using a usb WLAN adapter
FossaPup installed on thumbdrive (for now)
sdc1 is 622M/635M FAT32 for the boot loader, sdc2 is 6.4G/6.8G ext4 for the actual puppy, installed as a frugal.