Dualscreen doesnt work if third monitor present

[nine2]

I know forged alliance will only run on two monitors.

However I want to run forged alliance on two of them, even though I have three connected. The third would be displaying normal windows stuff - nothing to do with the game.

At the moment I have a problem where if a third monitor is connected, FA gets confused and runs on one screen on low resolution. If I disable one of the monitors in windows (it doesnt matter which one), then FA displays correctly on two monitors.

Now I know this is entirely possible, because I have been doing it for weeks just fine with two video cards (one card using two outputs, another card using one output). Now I want to run all three monitors from one video card (the card actually has 4 outputs), because otherwise photoshop crashes.

Basically I'm trying to avoid disabling monitors or rejigging cables whenever I want to play a game. Is there any way to tell FA which monitors to use/ignore?

graphics card: radeon r9 280x

in the log:

warning: GAL Exception: file : c:\work\rts\main\code\src\libs\gpggal\DeviceD3D9.cpp(189)
error: unable to create device

otherwise I think catalyst can be set up to autodisable on launch but i would prefer not to do this.

thanks!

[The Mak]

That error arrives from Direct X.

Could you post a screen shot of your Screen Resolution (sample is shown below) and indicate which one is your main screen that you want FA on, which one is the secondary screen for FA and which is the screen that you want on but not to show FA content.

Sample Window

ScreenResolution.png (82.18 KiB) Viewed 2620 times

[nine2]

Thank you Mak.

I attach the requested image.

1 and 2 are both 1920x1080. 1 should be primary and 2 should be secondary.

3 is 1080x1920 and should be non-fa

[E8400-CV]

You're already one of the lucky few that got Dual Screen working in the first place. Don't push that luck too hard

Perhaps FA can't figure out which of the two additional screen is "the" secondary, especially since >2 simultaneous screens on a consumer graphics card was non-existent in 2007

[The Mak]

Have you tried testing moving monitor #3 to the right side (not physically but in the Screen Resolution Control Panel window) so that it goes from left to right Monitor 1, Monitor 2, Monitor 3, just to see if it does anything?

[nine2]

Have you tried testing moving monitor #3 to the right side (not physically but in the Screen Resolution Control Panel window) so that it goes from left to right Monitor 1, Monitor 2, Monitor 3, just to see if it does anything?

I just tried and it doesn't have an effect, thanks tho.

Perhaps FA can't figure out which of the two additional screen is "the" secondary, especially since >2 simultaneous screens on a consumer graphics card was non-existent in 200

Perhaps ... I'm looking for a way to tell it what to do. On the other hand, like I said, 3 monitors was working for me in a different config recently.

[dananski]

I've also had this problem at work with three monitors on an AMD professional graphics card, but not at home where my four monitors are on a mix of consumer discrete card and integrated graphics. I think it might be something to do with having a portrait monitor since you have that and so does my work system. Does it work if your monitor is in landscape mode?

[nine2]

No, changing 3 to portrait doesnt fix anything.
Potrait mode does work if I disable one of the other two monitors.
All three screens work at once if one of the other monitors is on a different video card.

[Cuddles]

I have 3 screens on this PC and I run the game fine on two of them, none of the monitors has the same resolution.. One screen is on a different adapter.

I had the same issue you did.

FA gets confused and runs on one screen on low resolution

When I installed SweetFX it started working. Give it a try


There is a couple of threads on SweetFX if you search, here is one.
viewtopic.php?f=41&t=6438&p=63124&hilit=SweetFX#p63124

[nine2]

Hi Scoot,

Thanks for the tip. Sadly, using your zip had little effect, I also tried zep's one from this thread:
viewtopic.php?f=2&t=5434

As I mentioned on the other thread,

It's not replacing any files in my folder either ...
My bin folder has a d3dx9_31.dll but not a d3d9.dll
The zip file has d3d9.dll but not d3dx9_31.dll

Whilst searching I saw you helping a few other people with multiple monitors as well, so thanks on behalf of everyone.