Digital Workshop

I had a comment from a client that some videos in a presentation didn't appear on a projected screen when he'd got his laptop connected to a projector.

Those that were "rendered" were fine, while those that were set as "chroma key" did not display.

I can't test this out, as I don't have a projector.

Can someone with knowledge of this suggest whether On Top video will be OK?

Hi Linda,

I had the same problem a while ago using hte screen of the laptop and the projector at the same time. When I shut down the window on the laptop it woked fine.

So it can be a problemwith the video card of the laptop, playing video on the second screen.

Hope this helps,

Some displays with secondary output don't support video overlays or only very poorly. Cards not supporting overlays at all will fall back to rendered mode, but "stupid" cards that allow overlays on the main display and not the secondary; or incorrectly report their support for overlays will cause problems.

Unfortunately it's not something you can tell without testing it. If you don't have the luxury of that testing, then the safest approach is to use Rendered video.

Hello Linda....Duncan is right; many recent laptops has videocards with secondary output...so the user must to configure it if he wants to watch videos using a proyector. Ask to your client if he has the same problem when he wants to play a dvd movie using a projector....If yes......the only way is to configure the display settings (in advanced) and select the secondary monitor...is the only way (I guess) for to project any kind of movies ( and multimedia pubs with movies)......sorry for my bad english...hehehehehe

regards

federico

I'm wondering if the last couple of responses to this thread might be related to my recent post where I resolved black squares appearing after stopping a video in order to change pages.

I checked my hardware, and sure enough, my graphics card has a secondary output.

In the light of this, I guess I'll be using rendered videos as a matter of course from now on.

I have played a little with laptops and dual displays and I think you do NOT want to pick the option 'extend my desktop' onto the second monitor. There should be some setting where you clone or make both dispalys the exact same and then the overlay will work on both. It is something like that and I have found the few I have played with were eventually capable of working. I had this problems with a dvd move presentation for a client. Poke around and I think on most laptops it is possible.

Duncan,

If the client's laptop can project a video from Media Player, will it therefore be able to project

- an On Top video?

- a Chroma Key one?

Thanks, Linda