*-display
       description: VGA compatible controller
       product: GF108 [GeForce GT 530]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nouveau latency=0
       resources: irq:32 memory:fa000000-faffffff memory:d0000000-d7ffffff memory:d8000000-d9ffffff ioport:e000(size=128) memory:c0000-dffff
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.