Christopher Dean wrote on Sun, 24 October 2010 12:35 |
It could be the video card for the laptop does not have the power to push video to two sources simultaniusly. Try sending the output to the projector only. you will not have a display on the laptop but should be able to project your dvd |
Bennett Prescott wrote on Tue, 02 November 2010 15:22 |
http://en.wikipedia.org/wiki/High-bandwidth_Digital_Content_ Protection That laptop will probably not allow DVD video to be played on a device it does not control. |
Silas Pradetto { wrote on Mon, 25 October 2010 12:42 |
Very likely it's a copy protection thing. |
Mike Tomei, CTS wrote on Tue, 02 November 2010 15:58 |
No, if he's using a VGA connection, then I don't think HDCP is the culprit. I agree with Christopher on this one. We used to run into this problem all the time. One of our IT techs wrote up something on how to fix it, but it's too long to post on here. PM me if you would like me to email you a copy. Here's a quick summary of what he wrote up: "There are two simple ways to work around this display issue. 1. If possible, set both the laptop display and the external display (monitor, projector, etc) as primary display devices. In some cases only one output device can be set to primary. In these cases, the external device should be set to primary. The laptop display will become secondary and its video output will inherently be blank instead. 2. Using the display toggle function key, set the video output to external only. The laptop display will be inactive and the external display will become inherently primary." Mike Tomei |