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Hello i test 4 monitors xn253qp xn253qx xg258q pg248q on win 10 nvidia let me choose display scalling only on xg258q qx and qp but pg248q only gpu scalling some one know why?

Did you also tried it with 144hz refresh rate?

Max_hz wrote:Did you also tried it with 144hz refresh rate?

yes could be pg248q have very bad scaling i dont know

pox02 wrote:Hello i test 4 monitors xn253qp xn253qx xg258q pg248q on win 10 nvidia let me choose display scalling only on xg258q qx and qp but pg248q only gpu scalling some one know why?

I guess it's caused by monitor saying/responding (by DDC) it doesn't support monitor scaling and that's it.
https://en.wikipedia.org/wiki/Display_Data_Channel
win software to read data by DDC http://www.ddc-ci.com/

EDID is accessible by DDC. This might help with your problem.
https://www.monitortests.com/forum/Thre ... 90#pid2190

Gpu scaling aspect ratio gives the best image for my monitors always.I dont know how it changes input lag compared to display scaling aspect ratio though.Someone should test perhaps.