RealNC wrote:The lower the Hz get, the more severe the crosstalk gets. Also, crosstalk is higher than non-hacked ULMB at the same refresh. Meaning G-Sync+ULMB @ 85Hz has more crosstalk than stand-alone ULMB 85Hz. But it's not too bad at 85 and up. At 60Hz, it's too severe to be usable. Maybe this is tweakable?
This is quite a shame that strobe phase isn't ideally aligned. Or it's the variable overdrive that GSYNC uses -- that wreaks havoc with strobe crosstalk.
I imagine this is a hidden "beta mode" of the monitor that NVIDIA left in, for experimentation. If only there were hidden settings to tweak the variable overdrive to be more strobe-friendly.
Is strobe crosstalk still bad if you adjust the ULMB Pulse Width down -- to half it was?
Once you've had your fill and discovered that this mode is a cool hack but rather useless (
), reset everything back to normal by running "reset-all.exe" and reboot the computer. You'll be back to normal.
Not useless -- just extremely finicky.
A range of 85-120Hz is really tight for comfortable GSYNC strobing. It'd be far more useful if it was a 240Hz strobe mode with a 60Hz-240Hz VRR range, or some kind of a fade-to-nonstrobing algorithm (like the ones I wrote about in 2013).
In theory, it is also a very useful 60Hz single-strobe ULMB mode, if you use an emulator.
It's one of the only ways to get "60Hz single-strobe ULMB". It's occasionally a challenge to trick things like emulators to run in GSYNC mode, but several of them work that way -- and this ULMB+GSYNC trick is in theory good way to get 60Hz single-strobe ULMB.
Also if you simply treat this ULMB+GSYNC as a 120Hz strobe mode that doesn't stutter when framerates dip down to ~100fps or ~85fps, this can be useful.