root@fledgling:/boot/modules # kldload /boot/modules/amdgpu.ko <6>[drm] amdgpu kernel modesetting enabled. drmn0: on vgapci0 vgapci0: child drmn0 requested pci_enable_io vgapci0: child drmn0 requested pci_enable_io <6>[drm] initializing kernel modesetting (POLARIS10 0x1002:0x67DF 0x1462:0x3418 0xE7). <6>[drm] register mmio base: 0x80000000 <6>[drm] register mmio size: 262144 <6>[drm] PCI I/O BAR is not found. <6>[drm] probing gen 2 caps for device 1014:4c1 = 300104/180001e <6>[drm] probing mlw for device 1002:67df = 400903 <6>[drm] UVD is enabled in VM mode <6>[drm] UVD ENC is enabled in VM mode <6>[drm] VCE enabled in VM mode pcib6: allocated memory range (0x80040000-0x8005ffff) for rid 30 of vgapci0 vSep 29 21:53:51 fledgling kernel: pci_is_thunderbolt_attached not implemented -- see your local kernel hacker gapci0: Lazy allocation of 0x20000 bytes rid 0x30 type 3 at 0x80040000 ofw_pci mapdev: start 600c000040000, len 131072 <6>[drm] GPU posting now... [drm:atom_op_jump] atombios stuck in loop for more than 5secs aborting [drm:amdgpu_atom_execute_table_locked] atombios stuck executing E214 (len 428, WS 8, PS 0) @ 0xE35F [drm:amdgpu_atom_execute_table_locked] atombios stuck executing D3F8 (len 256, WS 4, PS 4) @ 0xD4F7 [drm:amdgpu_atom_execute_table_locked] atombios stuck executing B2F0 (len 290, WS 12, PS 4) @ 0xB3C3 [drm:amdgpu_atom_execute_table_locked] atombios stuck executing AD92 (len 142, WS 0, PS 8) @ 0xAE07 drmn0: gpu post error! drmn0: Fatal error during GPU init <6>[drm] amdgpu: finishing device. vgapci0: child drmn0 requested pci_disable_io vgapci0: child drmn0 requested pci_disable_io device_attach: drmn0 attach returned 22