Just saw the announcement of TW20221013, and DUPed to that. (Strangely, it DOWNgraded all the kernel-firmware* stuff!?) But no change: kernel: nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 470.141.03 Thu Jun 30 18:34:41 UTC 2022 kernel: [drm] [nvidia-drm] [GPU ID 0x00000200] Loading driver kernel: NVRM: GPU 0000:02:00.0: Failed to copy vbios to system memory. kernel: NVRM: GPU 0000:02:00.0: RmInitAdapter failed! (0x30:0xffff:874) kernel: NVRM: GPU 0000:02:00.0: rm_init_adapter failed, device minor number 0 kernel: [drm:nv_drm_load [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000200] Failed to allocate NvKmsKapiDevice kernel: [drm:nv_drm_probe_devices [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000200] Failed to register device Just wanted to boot to the previous kernel, but I'm not at the machine, and not sure about the proper syntax for grub2-once :-o