removable device mounting stopped working

[Neal Becker]

Dec 29 07:24:02 nbecker1 kernel: [   81.858088] usb 2-2: new high speed USB device using ehci_hcd 
and address 3
Dec 29 07:24:02 nbecker1 kernel: [   81.986100] usb 2-2: New USB device found, idVendor=18d1, 
idProduct=4e12
Dec 29 07:24:02 nbecker1 kernel: [   81.986107] usb 2-2: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
Dec 29 07:24:02 nbecker1 kernel: [   81.986113] usb 2-2: Product: Nexus One
Dec 29 07:24:02 nbecker1 kernel: [   81.986116] usb 2-2: Manufacturer: Google, Inc.
Dec 29 07:24:02 nbecker1 kernel: [   81.986119] usb 2-2: SerialNumber: HT02NP902612
Dec 29 07:24:11 nbecker1 kernel: [   91.036907] Initializing USB Mass Storage driver...
Dec 29 07:24:11 nbecker1 kernel: [   91.037154] scsi5 : usb-storage 2-2:1.0
Dec 29 07:24:11 nbecker1 kernel: [   91.037395] usbcore: registered new interface driver usb-
storage
Dec 29 07:24:11 nbecker1 kernel: [   91.037398] USB Mass Storage support registered.

Dec 29 07:24:12 nbecker1 kernel: [   92.039281] scsi 5:0:0:0: Direct-Access     Google,  Inc.Nexus 
One         PQ: 0 ANSI: 2
Dec 29 07:24:12 nbecker1 kernel: [   92.040168] sd 5:0:0:0: Attached scsi generic sg3 type 0
Dec 29 07:24:12 nbecker1 kernel: [   92.051444] sd 5:0:0:0: [sdc] Attached SCSI removable disk

But kde device notifier says 'No Devices Available'.

This used to work until today.  How do I debug this?