I've got an Dell M6500 with 12.04 installed that has its USB system randomly stopping - I can't find yet an specific behavior that would trigger the failure. From the basic lsusb before/after (below) ...
I own a Dell Inspiron on which I installed 12.04 on. Everything was working great up until a couple of weeks ago when the Touchpad stopped working. It doesn't show up in mouse/touchpad settings ...
I have a REALLY old Dell Inspiron 8200 laptop with Intel Pentium 4. I was wondering whether it would work. It has a P4 processor, 511mb memory and I have tried the 32-bit version of 12.04. I dont know ...