drivers - How do I configure an Nvidia RTX 2080 Ti with Ubuntu?

got a rtx 2080ti 2 days ago, previous was using two gtx 1080, and run my tensorflow program with no problems, after replaced with rtx 2080ti, the system cannot find driver for this device, and the lshw shows me the following

  *-display UNCLAIMED
       description: VGA compatible controller
       product: NVIDIA Corporation
       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 cap_list
       configuration: latency=0
       resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:c0000-dffff

i tried manually install some drivers from PPA, but nothing happens.

Is that my computer problem or it is indeed havent been supported yet.

my system version is 18.04

thank you