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Yes, that is why I returned my GW2450HM too. I am curious whether Benq improved it in GW2460 or BL2410...
If you are really hardcore gamer, you may find that Asus VG248QE that you bought useful - 144 Hz is nice (if you are able to set such refresh rate and have proper dual-link / displayport...
Try to adjust gamma level in OSD - it seems that gamma is quite different from piece to piece and often quite far from standard 2.2.
You can try this calibration page to find proper gamma settings:
http://www.lagom.nl/lcd-test/gamma_calibration.php
So if you will go for them, please report how does GW2460HM work for you. I bought GW2450GM about 2 weeks ago and I returned it because of quite bad ghosting/trailing issues, backlight uniformity (darker spots on the white screen) and gamma shift in different colors. Maybe I got some bad...
I confirm that HP 23xi runs at 75 Hz without problems (using single-link DVI), no frame skipping.
Benq GW2450HM works up to 71.4 Hz, higher rate produced horizontally moving white dots in the picture.
Well, I saw other people on this and also another forum having the same ghosting with GW2450HM as I had. Moving a black object or text on warmer white color background produces noticeable yellow ghost, moving black object on skin color (e.g. head with black hair in a movie) makes red ghost...
So I returned GW2450HM back to the shop - it had too much ghosting, non-homogenous backlight and gamma shift in different colors.
I bought HP 23xi for about 150 €, I will see if I will get used to IPS glow :-) So far no ghosting and more vivid colors than on Benq, design is quite nice...
I tried the moving text and car with brightness set to 10 (what I normally use), it was a bit more smooth because of the higher refresh rate, but I didn't observe any movement clarity improvement that could be caused by PWM strobing - I ended up on speed 10-11 on the moving text, like with 60 Hz.
It seems that this one doesn't work for BenQ too - I got horizontally moving white dots in the image too. Perhaps Benq is not able to handle so high refresh rate and max is 71.4 Hz...Which is still better than 60 Hz :)
Thanks, I did it using CRU on my ATI. I was able to get my GW2450HM only to 71.4Hz. Also 48 Hz works fine (for smooth movies playback).
I found that the limit is 165 Hz on pixel clock and if I go higher, screen has artifacts and moving horizontal or vertical lines.
If I just copy and edit...
Does anybody know approximate frequency of PWM (backlight blinking) in U2412M? I didn't find it in any review :-(
How bad IPS glow U2412M has, in comparison with e.g. LG IPS235P ?
Guys so how do you "overclock" a monitor to run at 72 or 76 Hz instead of standard 60? Is there any guide how to do it? Do I need to edit .inf file for the monitor, or is there any tool for that available? I want to try it on GW2450HM.
No, changing AMA/overdrive doesn't solve it. Value High is a bit better than Off, but Premium produces just different color of streaks - e.g. light blue instead of yellow in case of black background. Also cursor leaves a small white trail on dark backgroumd with AMA high, which doesn't bother me...
It was probably me, I reported this scrolling issue with the text turning yellow one or two days ago, and that setting colors to colder tone (blue over 97 in custom color settings) fixes it at least for black text on white background. Did you read somewhere that newer units have no ghosting...
Is having a different gamma for R/G/B colors a problem? My GW2450HM has (according to gamma calibration page at http://www.lagom.nl/lcd-test/gamma_calibration.php) gamma at 48%: R 2.4, G 2.7, B 2.9, grey 2.6 with default gamma=3 setting in OSD. I lowered gamma in OSD to 2 and adjusted gamma for...