[ubuntu] Camera and Card Reader "no medium detected"

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http://ubuntuforums.org – USB problems. All was well last time I connected my camera(Fuji A204) a long while back. Now it is not recognised. Neither is my card reader. I have tried different cards in both with the same result. USB pen drives and my scanner work OK. lsusb/dmesg shows the devices. Disk Utility lists both camera and card reader "no memory detected". All SD cards work in the camera and both devices work under Win 7. I hate to have to use Windoze. (Hardware)