Strange monitor problem!

I have my computer and TV connected to my GFX card. I am playing a film in VLC player and on my monitor it is fine but on my TV the whole screen is an exact clone apart from the contents of the film I am playing. The VLC screen is just black as if the film isn't being played at all.

Anyone know whats happening here?

Cheers

 

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display settings

 

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The same thing would happen to me sometimes on my external monitor attached to my laptop (not all the time, though).
The only way I could watch it on my external monitor is if I turned off my laptop monitor.
Perhaps the card can not handle driving both screens at the refresh rate required at the same time?

 

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It will only play on one screen at a time with standard settings. I have the same setup, but the tv and monitor are separate bits of the screen.

It's directX. Don't ask me why, but anything involving directX doesn't like to clone across 2 screens. You can change the settings of how VLC outputs video, which might help, but I can't guarantee it. I'll have a google, since I'm interested.

 

It might be an overlay problem

 

If you have an ATI video card there should be a setting in the Advanced Display Settings called Theater Mode. Turn that on and the video should play properly on both screens. Nvidia has the same thing but they call it Video Mirroring, search for that option and turn it on.

I had the same problem a while ago and that fixed it for me.

 

Thanks but its an Envida. I'm sure your right that is can be fixed because it always use to run on both screens. I might try just running it on the TV to see if that works.