Custom Resolution Utility (CRU)

[ToastyX]

(06-14-2022 11:48 AM)marxzoe Wrote:  I'm using a headless HDMI dongle to create a virtual Windows desktop in VR. I am now on a quest to increase the size of this desktop to humongous proportions.

I first used CRU to push the HDMI dongle to its maximum pixel clock limit. Then I turned to Nvidia's custom resolution tool to increase this even further by creating custom resolutions that are then scaled down to the monitor resolution.

However, at some point, I am not able to go further. Instead I'm getting the error message from the Nvidia control panel that my monitor does not support the new resolution.

Which I don't understand: isn't the scaling done by the GPU alone? What role does the HDMI dongle's capabilities play? What is the limiting factor here?

You'd have to ask NVIDIA about scaling limtations. Maybe the scaler has resolution or bandwidth limitations, or the driver is applying some pixel clock limit when it shouldn't. You might be able to go higher by enabling DSR instead of using NVIDIA's custom resolutions.