Regarding the "Device Administrator" and how to check if everything works:
One can do so by using your favorite text editor to open and read these files: "/var/log/syslog" "/var/log/dmesg" "/var/log/Xorg.0.log" And, search for "err", "warn", "caut" and "att" to look for errors, warnings, cautions and attentions, respectfully. Make sure to do the search without case sensitivity. You can also open a terminal and do (the "$ " is used just so you know which lines you must type, it can be ignored when typing): $ sudo lspci -knn | less "sudo" will ask for your user's password at first. When typing, it won't appear at the screen, for safety purposes. Inside GNU less, use the arrow keys to look for any PCI device that has no kernel driver or that has "Unassigned" in the name, because these might be the "bad guys". When done, press Q to close GNU less. If you want to know the other useful things about GNU less, press H instead of Q. Be aware that the GNU less search function is case sensitive. Also, to find any problem with the USB devices, do: $ sudo lsusb -t | less $ sudo lsusb | less You must use both "lsusb" invocations. The first one is used so that you can see which USB device has a driver in use, those which don't can be signal of problems (not aways). Then use the second invocation to know which bus and device refers to which USB, when there is a problem.
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