That custom resolution did the trick! 2880×2160 looks beautiful! Thank you for the quick replies.
Ah, EdgePeek helps, but I can’t seem to use it in the menus so I guess the key is to launch the game and then set the resolution.
The Vive Pro is 2880 x 1600 resolution for both eyes but that is what is causing the flicker and generates the message to use a 4×3 resolution. I already have the resolution of 2560×1600 in my Nvidia Control Panel, but this resolution doesn’t show up when I go into the HL2 Video options. Is 2048 x 1536 my best option? Is there any way to get a crosshair back?
I’m sure OP is talking about the fact that you see the left half of the screen in your left eye and the right half of the screen in your right eye. It is also distorted due to the lenses. This makes it very difficult to actually start a game when you have to select the rift as the primary display. To open Skyrim in Steam, I first set my screen to make the rift the primary, then I have to navigate through the startup screen by closing one eye and trying to click on the play button. Very cumbersome….