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[jossgray]

Is there any way to differentiate between active and passive displayport adapters using the ADL.

I'm specifically looking for a way to find out whether a display is connected using a passive or active adapter.

[chm · Accepted solution]

Hi,

you can determine the connection type by checking the ADLDisplayInfo structure. The structure contains the iDisplayConnector element. This element indicates if a DP, DVI-I, DVI-D etc  connection is used. Unfortunately you cannot determine the type of dongle. A display connected via active dongle looks like a DP connection and this is waht the iDisplayConnector would return in this case. For a passive dongle iDisplayConnector would be DVI-D.

Chris