Game won't launch with second screen enabled

[Doctor Krieger]

So I got this game specifically because the dual-monitor support sounded intriguing.

Turns out when I set up the second display in the settings, the game won't launch anymore - similar to the common issue where the resolution isn't set correctly and you have to change the preference file.
The thing is, I definetely set the resolutions and refresh rates correctly, and the game therefore should launch with dual monitor support - but doesn't.

My settings:
Primary display 1920x1080@60hz
Secondary Display 1280x1024@60hz

WIn 8.1 64bit with a GeForce 560TI, both monitors work fine in regular desktop mode (extended displays)

Any ideas what could help?

[SiLeX]

Can reproduce this problem.

Win7x64, NVidia GPU, AMD CPU

[general beanflicker]

https://support.steampowered.com/kb_article.php?ref=5688-IFHZ-2170

[Hogfather]

Put /safe in the game launch options run the game and change back the display setting just found it in an earlier post and it worked.

[SiLeX]

Thanks for you answers. You can also remove the settings file inside this folder:

%LOCALAPPDATA%\Gas Powered Games\Supreme Commander 2

This will not fix the problem, but reset the settings and makes SupCom 2 start again.

[Doctor Krieger]

I'm aware of how to reset the settings or use safe mode. That doesn't change the issue that what's supposed to be a feature isn't working correctly - I'd really like to use that second display, and it seems to work fine for others.
I just wonder what could be the difference.

[Ceejay]

Unable to replicate the fault, works fine for me. try the minimum res for your 2nd display and see if that works.

[Albatros]

I have the exact same graphic cards and monitor configuration, but on win7. It doesn't work either.

[Dionysos]

same problem for me, with same configuration

[Wujo_gm]

That's super strange. I remember that when I first bought the game (about a half year ago) first thing I did was using both monitors for SC2. After some time I have decided that I want play with only one of them. Now, after few months I wanted to use both monitors again and suddenly I have the same problem as you do.
First screen 1920x1080
Second screen 1680x1050
Win7 64bit
GF 560

[NoxiousPluK]

I have this same issue (W10 2x1920x1200).. Anyone found a fix yet?

[NoxiousPluK]

I analysed the dump files in the bin folder, and it shows this: 0xC0000005 (The thread tried to read or write to a virtual address for which it does not have the appropriate access).

[NoxiousPluK]

I have tried the 2GB+ patch for applications (Large Address Aware) but to no avail.

[Ceejay]

Originally posted by JapyDooge / NoxiousPluK:

I have this same issue (W10 2x1920x1200).. Anyone found a fix yet?

Dual screens does not work for anyone with windows 10 regardless of make/brand/model of gpu. I no longer can run in dual since upgrading.

It seems to be an inherent problem with the game engine as neither sup com 1 or Forged Alliance can run dual either,

note this is not the same as the ops issue, win 7 and 8/8.1 can all run dual monitors.

[NoxiousPluK]

Hey thanks for your response :) It is somewhat weird because I'm not aware of changes to the driver model since W8.

I will try to see if I can do something more and would love to hear from others too if they managed to find a fix :)

[Ceejay]

Originally posted by JapyDooge / NoxiousPluK:

Hey thanks for your response :) It is somewhat weird because I'm not aware of changes to the driver model since W8.

I will try to see if I can do something more and would love to hear from others too if they managed to find a fix :)

Not sure its directly a driver issue as neither intel, amd or nvidia can do it, it must be a system call by the gameengine. (ie bypassing the drivers/direct x) I could be wrong, but I would have though it it was driver/direct x related someone on win 10 somewhere would be able to play it, and so far apparently no-one on win 10 can play dual screens.

Still hopefully you or someone else will come up with something.