martijn@ThinkPad-X1-Extreme-2nd:~$ lshw | grep -i unclaimed
WARNING: you should run this program as super-user.
           *-display UNCLAIMED
        *-generic:1 UNCLAIMED
        *-memory UNCLAIMED
        *-serial:2 UNCLAIMED
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.