GPU Passthrough on Proxmox for Hardware Transcoding
TL;DR Intel iGPU passthrough from Proxmox to a k3s VM enables hardware video transcoding with minimal CPU overhead. This guide covers the complete process: enabling IOMMU, configuring VFIO, blacklisting the i915 driver, rebuilding the VM with q35/OVMF, and verifying VA-API inside the VM. The Intel UHD 630 in the M920q handles H.264 and HEVC encode/decode at real-time speeds. Why GPU Passthrough? Software transcoding (libx264/libx265) on a 6-core i5-8500T is limited: ...