[PLUG] Diagnosing USB connection problem

[Rich Shepard]

   Today I am not able to sync my Treo 700p with jpilot on the desktop. It
last worked fine on May 26th (a week ago), and has worked for years. Jpilot
is set up to use tty/USB1 and it does not matter into which USB port on the
desktop the cable is plugged.

   I connect the cable to the phone, hear the beep, and click the sync (or
backup) button on jpilot and nothing happens. Same thing with a new
connecting cable.

   The full record from /var/log/messages follows:

Jun  2 10:40:58 salmo kernel: [7834993.439278] usb 4-3: new full-speed USB
device number 31 using ohci_hcd
Jun  2 10:40:58 salmo kernel: [7834993.590200] usb 4-3: New USB device
found, idVendor=0830, idProduct=0061
Jun  2 10:40:58 salmo kernel: [7834993.590205] usb 4-3: New USB device
strings: Mfr=1, Product=2, SerialNumber=5
Jun  2 10:40:58 salmo kernel: [7834993.590207] usb 4-3: Product: Palm
Handheld
Jun  2 10:40:58 salmo kernel: [7834993.590208] usb 4-3: Manufacturer: Palm,
Inc.
Jun  2 10:40:58 salmo kernel: [7834993.590210] usb 4-3: SerialNumber:
PalmSN12345678
Jun  2 10:40:58 salmo kernel: [7834993.594180] visor 4-3:1.0: Handspring
Visor / Palm OS converter detected
Jun  2 10:40:58 salmo kernel: [7834993.594259] usb 4-3: Handspring Visor /
Palm OS converter now attached to ttyUSB0
Jun  2 10:40:58 salmo kernel: [7834993.594301] usb 4-3: Handspring Visor /
Palm OS converter now attached to ttyUSB1
Jun  2 10:40:58 salmo mtp-probe: checking bus 4, device 31:
"/sys/devices/pci0000:00/0000:00:12.1/usb4/4-3" 
Jun  2 10:40:58 salmo mtp-probe: bus: 4, device: 31 was not an MTP device 
Jun  2 10:41:28 salmo kernel: [7835023.561483] usb 4-3: USB disconnect,
device number 31
Jun  2 10:41:28 salmo kernel: [7835023.561618] visor ttyUSB0: Handspring
Visor / Palm OS converter now disconnected from ttyUSB0
Jun  2 10:41:28 salmo kernel: [7835023.562161] visor ttyUSB1: Handspring
Visor / Palm OS converter now disconnected from ttyUSB1
Jun  2 10:41:28 salmo kernel: [7835023.562175] visor 4-3:1.0: device
disconnected

   The issue seems to be that for some reason the phone is now not seen as an
MTP device. I've no idea why the Media Transport Protocol is involce. How
might I fix this situation?

Rich