Hello, I’m using a Windows 11 VM on Proxmox VE, and my audio keeps cutting out. I use GPU passthrough with my NVIDIA 2080 SUPER for gaming, but I don’t know where this issue is coming from. I’ve switched audio devices, but the issue persists. The audio cuts out for a few seconds, then comes back. I updated Windows to the latest version, uninstalled and reinstalled the USB Composite Device in Device Manager (using a USB to 3.5mm audio jack).
I don’t believe I experienced this issue before. This build uses a Librebooted Dell T1650 motherboard which uses SeaBIOS. Maybe I need to switch OVMF (UEFI) to SeaBIOS in the VM? Not sure what’s going on. This is a recently created VM, and the only things installed are my Steam games and nothing else. Any help is appreciated!
I disabled SMT to avoid meltdown attacks, so I added ‘nosmt’ in /etc/default/grub on Proxmox. Currently I’m using a Xeon E3 1275 V2 which has 4 cores, but since nosmt disables hyperthreading, I’m not using 8 cores. I do think you’re right though, this problem hadn’t appeared before and I believe only started to happen when I started messing around with the amount of cores the CPU has. I’ll test it out and keep you updated! Thanks for the advice!