guest_uname : DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
drm state   : /dev/dri does NOT exist (QEMU std VGA; no radeon, no i915)
compiler    : DragonFly cc (base gcc/clang toolchain) — see build.log
kernel      : X86_64_GENERIC built 2026-07-02
conclusion  : both DF-4500 and DF-4501 are radeon-UVD-hardware-gated;
              compile-verified only on this guest.