Comment 6 for bug 242196

Okay, sorry for rushing ahead a bit. What I want you to do is to first start a terminal:

You can do this either from the menu: In Applications > Accessories > Terminal
Or if your keyboard shortcuts are set to default you can use alt + F2 to bring up the run dialogue, and just type "terminal" to start the terminal.

Into the terminal you should then type "udevinfo -e > udevinfo.txt" as one command (this runs the specific command and puts the resulting info in a document in you "current location" ( normally just your "home" directory)).

Now take this document "udevinfo.txt" which you have created and attach it here on this bug report. The file will probably be located in /home/[your username]/ (for example /home/dean/udevinfo.txt).

Good luck!