Can't run two fullscreen applications on Windows 10

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exander
Posts: 6
Joined: Thu May 14, 2015 2:52 am

Can't run two fullscreen applications on Windows 10

Post by exander » Wed Jun 15, 2016 1:55 am

Can't run two fullscreen application on Windows 10, on Windows 7 it was not a problem. It usually spits error about Direct 3D.

bazantik
Posts: 25
Joined: Tue Jun 02, 2015 12:13 pm

Re: Can't run two fullscreen applications on Windows 10

Post by bazantik » Wed Jun 15, 2016 5:55 pm

exander wrote:Can't run two fullscreen application on Windows 10
I think you must run one of them as "windowed mode" (or borderless window).

exander
Posts: 6
Joined: Thu May 14, 2015 2:52 am

Re: Can't run two fullscreen applications on Windows 10

Post by exander » Thu Jun 16, 2016 6:35 pm

bazantik wrote:
exander wrote:Can't run two fullscreen application on Windows 10
I think you must run one of them as "windowed mode" (or borderless window).
Yes that works, but on Windows 7, I could run two applications on fullscreen without any problems. I did more testing today and some application I can't run fullscreen even in single instance. Borderless window works fine, but older programs does not have this option - I can work around this using some third party application, but even then there are limitations (for example in Killing Floor I can't change brightness/gamma when not in fullscreen).

Why does this doesn't work? Is there a fix? Should I go back to Windows 7? I expected that the functionality will be comparable.

exander
Posts: 6
Joined: Thu May 14, 2015 2:52 am

Re: Can't run two fullscreen applications on Windows 10

Post by exander » Tue Sep 06, 2016 1:00 pm

I did more testing and it affects only DirectX 9 applications.

It can be easily tested in Unigine Heaven Benchmark: https://unigine.com/products/benchmarks/heaven/

If I select DirectX 9 and Full Screen I get:

Dirct3D9 error: invalid call
D3D9AppWindow::create_context(): CreateDevice(): failed
Engine:video_restart(): can't set 1920x10980 fullscreen video mode

If I select DirectX 11 and Full Screen then everything is fine.

Could someone please look into it?

exander
Posts: 6
Joined: Thu May 14, 2015 2:52 am

Re: Can't run two fullscreen applications on Windows 10

Post by exander » Tue Sep 06, 2016 1:18 pm

It can be easily tested in Unigine Heaven Benchmark: https://unigine.com/products/benchmarks/heaven/

If I select DirectX 9 and Full Screen I get:

Dirct3D9 error: invalid call
D3D9AppWindow::create_context(): CreateDevice(): failed
Engine:video_restart(): can't set 1920x10980 fullscreen video mode

If I select DirectX 11 and Full Screen then everything is fine.

Could someone please look into it?

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Cole
Posts: 6
Joined: Tue Sep 06, 2016 6:55 pm

Re: Can't run two fullscreen applications on Windows 10

Post by Cole » Tue Sep 06, 2016 7:45 pm

I've experienced some issues in fullscreen gaming once got to Win10 with this great software and this is how i solved:
for crashing games on startup I ran Game exe on Win7 Compatibility mode,
for fullscreen flickering I had to create a new custom resolution in Nvidia Control Panel, like 1920x1079 and set the desktop res to it,
then i ran the game on native 1920x1080 resolution and it worked fine without any issue,
Haven't tried on other gpu brands tough.

Lang
Posts: 4
Joined: Tue Feb 16, 2016 8:45 pm

Re: Can't run two fullscreen applications on Windows 10

Post by Lang » Sun Sep 11, 2016 8:35 am

just run all them in borderless window, and make sure you set the res max depending on your monitor. you wont even be able to tell from it being windowed.

bazantik
Posts: 25
Joined: Tue Jun 02, 2015 12:13 pm

Re: Can't run two fullscreen applications on Windows 10

Post by bazantik » Tue Sep 20, 2016 8:26 pm

Cole wrote:for crashing games on startup I ran Game exe on Win7 Compatibility mode
Really works! Thanks fot the tip, no need to disable Aster to play Assassin's Creed II now :-)

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