Custom Resolution Utility (CRU)

[falkentyne]

(05-21-2017 04:42 AM)zortos Wrote:  Hi, owner of a Benq XL2540 here; is there any way to get 1440x1080 at 240hz?

240hz at native resolution requires a pretty high pixel clock. I don't have this monitor, however on the older Benq monitors (e.g. the 144hz ones), you could force lower resolutions at 144hz by messing with the Vertical Total value, without needing GPU scaling or even with a custom resolution directly. For example, 800x600@144hz and 1024x768@144hz isn't something you can normally use display scaled, via custom detailed resolutions ("Out of Range..."). But by using a VT 1098 custom resolution to trick the scaler (native resolution at 144hz uses this VT), you can force lower resolutions to work as well.

Find out what timings 1920x1080@240hz uses and take note of them. Then create a lower resolution with similar timings or at least a similar VT. You may have to experiment, and the Realtek 2796BF scaler may not function at all like the Mstar 8556T scaler. The only thing I KNOW is that VT tweaks work to reduce strobe crosstalk on the 2796BF for blur reduction. I do NOT know if bizarre resolutions can be forced to work like this.

(quick example: on the 144hz Benq Z Series monitors and the XL2430T):
2560x1440@100hz can work display scaled by using a VT 1500 tweak, because reasons...
(and the OSD actually reports 2560x1440, but says it's 60hz for reasons......)

I refuse to buy one of these expensive Realtek Benq/Zowies because of the lack of 60hz single strobe. So you're on your own here. Only if I do wind up buying one will I be able to test if stuff like 1440x1080@240hz (@144hz on the XL2735) will work.