Hi, I have old cameras that connect to Linux, like the Canon 350d (older than the 400D) and also a NIkon D5000. I'm sure it's something simple like: - dodgy cable, - flat battery, - etc. The PMP setting shouldn't make any difference. Maybe it could get locked if you have automount on, but lsusb should still work. Does it work at all, even without a USB cable? try dmesg and see if there are any helpful messages. Sorry. Regards Steve.Read More...