DisplayLink Forum - View Single Post - USB Device shown as 'Unknown' after re-plugin

nlandas · 12-04-2013, 04:27 PM

We have the same problem on a Toshiba Dynadock (Displaylink) with the latest 7.4 drivers. We also updated the USB chipset drivers on the laptop itself. The Smartboard will be recognized briefly when plugged in and then drops off and the Smart software can not locate it. Part of it shows as an Unknown device when this occurs.

If we plug directly a USB port on the laptop it works fine. We'd really like it to work through the Dynadock so the instructor only has one cable to plug in. Anyone have any ideas on this?

Those are the same Model Smartboards we are using. The laptop is a new DELL Latitude 3330 with fresh install of Windows 7 64bit and all the latest drivers from DELL and Smart.

I hate to just say me too and not offer a solution but I thought perhaps posting on this slightly older thread might show that others are seeing this.

12-04-2013, 04:27 PM	#2
nlandas Junior Member Join Date: Jun 2012 Posts: 4	We have the same problem on a Toshiba Dynadock (Displaylink) with the latest 7.4 drivers. We also updated the USB chipset drivers on the laptop itself. The Smartboard will be recognized briefly when plugged in and then drops off and the Smart software can not locate it. Part of it shows as an Unknown device when this occurs. If we plug directly a USB port on the laptop it works fine. We'd really like it to work through the Dynadock so the instructor only has one cable to plug in. Anyone have any ideas on this? Those are the same Model Smartboards we are using. The laptop is a new DELL Latitude 3330 with fresh install of Windows 7 64bit and all the latest drivers from DELL and Smart. I hate to just say me too and not offer a solution but I thought perhaps posting on this slightly older thread might show that others are seeing this. Last edited by nlandas; 12-04-2013 at 09:21 PM.