I just got an Acer XB273K (Gpbmiipprzx) and am trying to set it up. I've gotten 4k and HDR to work with one displayport cable connected but of course this means choosing between 120hz or 10 bpc color depth because one cable doesn't have the bandwidth for both at the same time. My understanding from google (apparently there is no actual manual or instructions for this thing?) is that the way to get 10 bpc and 120hz or to game at 4k 144hz is to plug both displayport cables in at once for double the bandwidth. However, when I do that the system thinks I have two monitors plugged in. I know from, again, google that this isn't uncommon and the general solution is to swap the displayport cables at either the video card or the monitor but not both. However, that doesn't fix the issue for me. Still two monitors no matter which output on the video card goes to which input on the monitor. All that changes is which of DP1 or DP2 is the primary desktop with all my icons and such and which is the secondary desktop with nothing on it.
Telling the system to mirror "both" monitors rather than to have two doesn't fix it because I still can't run 120hz and 10bpc or 4k and 144z.
Does anyone know how to fix the issue? Since there's no manual or anything I'm kind of at a loss. As I said, it's the XB273K Gwhatever version, and my video card is a GeForce RTX 2080 until I can somehow pry a 3080 out of the death grip of a bitcoin miner. I can provide any other tech details but I have no idea how to go about troubleshooting this. I've swapped the cables back and forth and back and forth and nada.
