Jump to content
  • Advertisement
Sign in to follow this  
floydzep

Fullscreen App causing 2nd monitor to black out

This topic is 2292 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Does anyone have some knowledge on why running a DX game fullscreen on one monitor would cause the second monitor to go black screen?

I would be most grateful!

Basically, whenever I go fullscreen in my game, the second monitor just goes all black. I'm not doing anyhting fancy, and even the DirectX Samples do the same thing on my computer. Is this a known problem? Any work-arounds?

Thanks!

Share this post


Link to post
Share on other sites
Advertisement
It could be due to the fact that some fullscreen methods make the background color black, and going fullscreen means you are taking up everything, so it is filling one screen and blacking out the rest. I believe Windows Media Player does that on playback with dual monitors, extended desktop option.

Share this post


Link to post
Share on other sites
You might want to give some more information like:

what OS?
Number of graphic cards ? Crossfired?
Card mfg?
DX version?

Using one video card with extended desktop on windows7, I can tell you that both monitors share the same driver and you can get full true screen on both of them but if you have multiple adapters (video cards) you cannot. It's a Windows 7 limitation.

Depending on what you're wanting to do, you may be able to manually turn off the Desktop Compositor but this can be a bit sketchy + its deprecated.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!