USB sticks and cameras used to pop right up on my desktop. Now they don't. I've checked the Gnome "Drives and Media Preferences" and nothing has changed -- I have "Mount removable media when inserted" etc. (Tried toggling it off and back on, no effect.)
I've logged out and back in, even rebooted. /var/log/messages shows the devices are being recognized by udev:
Jun 27 19:53:37 torch kernel: Attached scsi removable disk sde at scsi11, channel 0, id 0, lun 0 Jun 27 19:53:37 torch scsi.agent[13576]: disk at /devices/pci0000:00/0000:00:0b.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0 Jun 27 19:53:37 torch udevd[1347]: udev done! Jun 27 19:53:47 torch udevd[1347]: udev done!
However, that's followed by this:
Jun 27 19:54:07 torch hald[5179]: Timed out waiting for hotplug event 699. Rebasing to 699
I restarted hald (service haldaemon restart) and it picked up one of the two devices I'd plugged in, but not the other.