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What's DOS?
Posts: 1
Registered: ‎05-31-2013
Location: Ireland
Message 1 of 2 (294 Views)

USB PORT REPLICATOR WITH DIGITAL VIDEO JUMPING BETWEEN LAPTOP SCREEN AND LCD

Hi,

 

I have an E330 connected to the above port replicator and I am having an issue where I could be working away on a document and all of a sudden the screen on my LCD freezes and goes blank, then my laptop screen boots up for about 3 seconds then it switches back to the LCD.

 

I have noticed that it only seems to happen when I am either using the scroll wheel on the mouse or clicking on the mouse button.

 

Any suggested fixes would be welcome

 

Graeme

Blue Screen Again
Posts: 14
Registered: ‎03-07-2013
Location: United Kingdom
Message 2 of 2 (258 Views)

Re: USB PORT REPLICATOR WITH DIGITAL VIDEO JUMPING BETWEEN LAPTOP SCREEN AND LCD

This sounds like the USB dock is dropping off the USB bus and then reconnecting. This could be a problem with the USB 3.0 hub in the dock.

Lenovo have made a firmware update available for the USB 3.0 hub in this dock, that could solve the issue:

http://support.lenovo.com/en_GB/guides-and-manuals/detail.page?DocID=UM014961

It is also work making sure your USB 3.0 host controller drivers are up to date if you are using Windows 7. Links to the latest USB 3.0 HC drivers can be found here:

http://kb.displaylink.com/315

I *think* it is an Intel USB 3.0 chipset on this laptop.

Wim
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