T520 Display Port Not Working in Windows or Ubuntu

[pittsburgh]

I have a t520 and I am trying to hook it up to a display using a displayport to hdmi adapter and the computer wont recognize it in ubuntu or in windows7... VGA works flawlessly in both though

Any ideas? T.I.A.

[Everbest]

im having smae problem but i downgraded to xp

[ColonelONeill]

Do you have Optimus?

Is the graphics driver properly installed?

[Everbest]

yes the graphic drivers are properly installed ut whats optimus?

[Austen]

Hi,

I have a  brand new September 2011 T520. My display port works perfectly for AUDIO and VIDEO. It is very important that you get the right adapter. I bought the StarTech DisplayPort to HDMI Video AND Audio Adapter Converter. I was worried by all the negative posts about lenovo displayports, But now that I have tested it and it works fine. Make sure your adapter says AUDIO AND VIDEO and you Run the update tool in the lenovo tool box. (Blue ThinkVantage Button.)

Anyways if you have the right adapter it was super easy. All you have to do is connect it up and your good to go!