Hello Assassin! It sounds like you just need to make some adjustments to your Display configuration. If none of the workarounds provided by the community help you resolve this, please reach out to our technical support team and share screenshots of the Display settings your system is operating under currently and someone can take a look at this for you and provide some insight on how to help you if needed. Thanks!
I also have this problem. The issue seemingly occurs because, irrespective of which monitor is set to "Primary" many games will only want to run on the monitor numbered "1" and not the monitor numbered "2" in Windows
Neither ATI, Nvidia, nor Microsoft seem to have a way to change the numbers as they are based on the ports on the display card.
As an example I have just had my display port cable go t!ts up between my 1080GTX (3x DP; 1x HDMI; 1x DVI) and my Samsung U28E590 4k monitor. This is my primary monitor that sits in front of my kbd. To the left of that I have my trusty 7 year old 45" Samsung FHD LCD TV, this is not my primary monitor.
Unfortunately since my display port cable stopped working I've had to switch ports on the card, the 4K is now plugged into the HDMI port and the LCD TV is in the DVI port with a DVI - HDMI adapter on the HDMI cable.
The HDMI port is lower priority than the DVI port I now need to use until I can get to a shop and buy another hated display port cable, so currently my 4K monitor while still being primary, is listed as "monitor 2", and my TV is now "monitor 1" in Windows.
Herein lies the problem. AC Origins will only start on "monitor 1" irrespective of which is set to primary. And the only way to change who is identified as "monitor 1" is to have the intended "monitor 1" plugged into the correct port on the card, or be the only monitor talking to the card by either unplugging the cable, turning off multi-monitor when running AC Origins.
It's not ideal, but disabling multi-monitor in Windows display properties takes like 5 clicks
Can confirm this is still a problem. It's not individual user issue, definitely how the game identifies which monitor to use.
I have one HDMI connection for 4k TV display, and another for 5.1 audio capabilities straight into my Vizio soundbar. Every other game knows to use my 4k as the primary monitor (multiple monitors because NVIDIA still sees the audio HDMI connection as an eligible monitor, unfortunately). Launching the game leaves me with the steam blue background and the games audio coming through. Disabling the soundbar coming across as a Generic PnP monitor does not resolve. Disabling the device "display" via NVIDIA or Windows resolves, but that also disables my desired sound capabilities.
However, I tried something else that was far-fetched and it resolved the issue. I made the Vizio output as my primary "monitor" in an extended display configuration. Finding my mouse back to the 4k display, I launched the game. The launch videos come up fine, then the menu comes up but it is only showing a quarter of it in the bottom right hand of the screen, with the rest of the screen being black. It was enough for me to see menu selection, so I went and changed the display to Window Borderless. Funny enough, it reset the screen correctly but still remains in Fullscreen mode...The downside to all this is with every game launch, the resolution needs to be adjusted like this to the display only showing up in part of the screen.
I also messed around with mirroring the display between my TV and Vizio device. The game functions appropriately but this breaks HDR and 4K resolution for me (even when manually adding 4k resolution to the Vizio device in NVIDIA settings). I even went back to optical for audio, but this is a no go as video games don't compress 5.1 audio for it to be able to travel via that medium. HDMI allows for uncompressed 5.1 to travel, and is therefore a preference for anyone wanting that in PC gaming.
All of this could be resolved if my soundbar ARC capabilities could pass 4k. That may break HDR though, haven't read up on that.
Bottom line, this is a game issue and the hoops to get this game to work with 5.1 surround sound is a PITA. Won't be buying Odyssey as I fear for the worst since Origins still isn't fixed.