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lead_org Microsoft MVP Contributor
Views: 2,208

Question

Hi,

 

I've bought a Usb-to-DVI transformer( http://www-307.ibm.com/pc/support/site.wss/MIGR-72682.html or http://shop.lenovo.com/SEUILibrary/controller/e/web/LenovoPortal/en_US/catalog.workflow:item.detail?...)

 

Product Image Of 45K5296

 

I want to connect a Dell 3007WFP to it. But it doesn't recognize the right resolution and I can't change it.

 

I already read that it is possible that the software isn't being able to read the settings of the screen.

But I don't think this is the case he because it recognize the screen and recognize the name etc...

 

I'm using a dvi dual link cable DVI-D(which is needed for high res screens see: http://en.wikipedia.org/wiki/FileSmiley Very HappyVI_Connector_Types.svg)

 

It is set to the resolution 1280x800, which is really handy for a 30" screen.

Answer

The usb2dvi adapter can only support a maximum of WUXGA in single link DVI mode, your 30 inch Dell LCD requires dual link dvi-d to work at its max resolution. If you use a single link dvi adapter your LCD only supports 1280 x 800 resolution.

 

Dell 30 inch LCD with WQXGA (2560 x 1600) combines two single link signal of 1280 x 800 into a 2560 x 1600 signal.

 

So in a nutshell, you can't use the Lenovo single link USB2DVI converter (recommended to support only up to WUXGA 1920 x 1200) to run a 30 inch WQXGA monitor or 27 inch 2560 x 1440 monitor at their native resolution.

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