namcost wrote: ↑02 Jan 2022, 01:40Well. For the custom resolution, you will end up doing the large veritcal totals. So if you have Nvidia, have the monitor running 240hz, and then open the custom resolution utility. Change the timings to custom. And then after that, switch the HZ to 120, and then for the vertical total, double that number. Save, test. Should work. And then running the viewsonic/blurbuster flicker calibration, tweak it until it looks good. FOR ME, that would be 15/98/15 in terms of top to bottom. Panel variance is a thing so my strobe utility settings may not work for you. I like my display a little darker so you might not like a setting of 15, you'll probably end up around 20-30. and then tweaking the second until you get the clearest image overall. you'll notice as you change the second option that the top or bottom will start having double images. for me the, top starts off with double image, and then becomes the middle, and then the bottom, and then gone. overdrive will effect things. 15 for me is best. any more and you get ghosting, and lower is no benefit.Zace wrote: ↑30 Dec 2021, 14:56Saw your amazon review and could you give exact settings on what you put for the custom resolution and strobe utility for the 120hz? And do you have icc for your calibration?namcost wrote: ↑02 Dec 2021, 19:39Okay boys and girls. I did some 240hz testing with the 3 overdrive modes (standard/advanced/ultrafast) and have given 10/90 times in a nice little chart....
https://imgur.com/a/8cVUkaQ
XG2431 240hz Timings 3 Overdrive Modes.png
These tests were done AFTER color calibration (using the custom color temp mode. 95 red, 95 green, 100 blue gave perfect d65 aka 6500 white point) and without using any of the flicker/strobing modes. Pure pixel response at 240hz using the 3 overdrive modes.
For color calibration, after calibration I got a measured average delta-e of 1.2 for all patches of color. Lowest average 90% was 0.5 and highest average 10% was 6.3. Maximum all patches (absolute worst) was 8.5 and maximum of the lowest 90% was 4.7.... overall not bad but not great. Considering the price of the monitor, its actually really good.
Compared to my Alienware 240hz (aw2418hf) this monitor is pretty nice. Granted the Alienware is a TN based monitor.... this IPS has interesting readings. Generally it seems the darker transitions are slower than brighter. Going to full 100% white from any starting point pretty much gave the best results. On the flip side, on my Alienware, going to full 100% white gave the slowest transition times.
My next testing will involve messing with the flicker backlight/strobing stuff. I don't think 240hz will offer a good enough picture. So far I get a double image no matter what. I might try 120hz and see if I can do "large vertical totals" to get a perfect image. If so, awesome. But so far, Nvidia only recognizes 3 modes, 100hz, 144hz, and 240hz. So I am going to have to make a custom resolution for 120hz.... which to me, seems odd. I would think all modes would show up like my Alienware. I am using a certified DP 1.4 cable from Club3d so I know that my cable is not the issue. So far, monitor seems nice, but I haven't tried gaming or watching movies/tv/anime yet. I figured I would hot drop my results as soon as I was done.
Let me know if anyone wants any other refresh rates tested for pixel response and with WHAT overdrive mode. Not really going to run through all 3 modes on every refresh rate possible, so if you have a specific combo of things, I can test it.
The tools used....
X-Rite i1Display PRO using their native software. I know some people will yelp about using Display Cal.... but in my personal testing, the stock X-Rite software gets closer to CALMAN software than Display Cal does. But CALMAN is outside my price range so I wont touch it.
PicoScope 2204a USB Oscilloscope and their native software. It can auto give me 10/90 or 20/80 times, I wish it had the ability to give me full 0-100 times. Maybe I can figure out how to add that in. The software is adaptable.
ThorLabs SM05PD1B Photodiode and using a ThorLabs SM to BNC cable.
Hey, thanks for the previous reply. I also found these settings on blur. It seems the horizontal total and front porch/sync width were different.
What formula is it to change these?