Very similar problem here, automounting a 1GB Kingston DataTraveller U3usb flash drive. (Other generic USB flash drives automount instantly.)
Dmesg shows long loops of 'new device' before the device is finally correctly identified and added after a couple of minutes wait. I'll attach dmesg tail, the first 178 or so lines are just looping! Once found and mounted the drive appears to work OK. Ejecting works as normal. -- Mounting my USB drive take long https://launchpad.net/bugs/40850 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs