getting A new 144Hz monitor

[Falkentyne]

It's up to you. I have an XL2720Z. I can't tell you what to get.

[chandler]

ok, last question, I believe u talked about it already but I just cant quite remember due to ur use of so many setting names and terms ,

if talking about the LightBoost setting, which model can give me the closest thing? as far as I know according to this : http://www.blurbusters.com/faq/120hz-monitors/

the Blur Reduction / PMW Free comes instead of the LightBoost ? but its not completely true is it?
and btw whats BR V2 of the 30T ? Is it really just a marketing gimmick?

EDIT : Ive just discovered that the 2720z is infact 1080P, and for 27" Im willing to pay the extra , so I might be getting it after all, what do I need to know? any firmware stuff? anything pre-purchase? (again, talking about 2720z) Zowie version is better in any way ? or is it just a name change like the 11z ?

[chandler]

?

[Erecshyrinol]

There is a sticky in this subforum which will answer all your questions. Perhaps it's not bite sized and easy to follow, but if you're gonna tinker around and do VT tweaks, you're gonna need some patience and at least some understanding of what it is you are doing. If you want to understand everything all at once and be done with it, well, it's not really gonna happen.

the Blur Reduction / PMW Free comes instead of the LightBoost ? but its not completely true is it?

There's nothing synonymous with "blur reduction" and "PWM free" - in fact, it's the exact opposite. Blur Reduction is based on strobing. But all new BenQ monitors are PWM free (read: pwm = strobing) if you turn blur reduction off.

If you are sensitive to PWM flicker, Blur Reduction On may cause eye strain for you. I think there is no one kind of PWM sensitivity though. When flickering is synchronized with the refresh rate as it is with lightboost, BBR and other blur reduction methods, it may be a lot easier on the eyes for some users. For some people, the increased motion clarity may actually reduce eyestrain compared to no flickering. It depends on the individual.

and btw whats BR V2 of the 30T ? Is it really just a marketing gimmick?

It is and it isn't.

Some settings are labeled differently and they're available in the OSD without having to access the factory menu. Also, I think AMA (overdrive setting, known as "trace free" on your ASUS) may be improved in Blur Reduction On mode compared to earlier 24'' models. Still trying to figure that out. Bottom line, there's nothing revolutionary going on with "BR V2".

[chandler]

whats the closest thing on say the 2720Z to my VG248QE 120hz strobed (thats what I used since the very beginning) , and also, does strobing work with 144hz on the Z models? 2720 in practicular ? bcuz with lightboost as Im sure u know it doesnt. I didn't see "MUCH" of a difference with the extra 24hz though.. in CoD4 and especially in CSGO. and I really prefered it strobed @ 10% (also didn't mind it being to dark at all, as some users complain)

[Falkentyne]

120hz with vertical total (VT) 1500 (don't use VT 1502 at 120hz, it doesn't sync right about 20 percent of the time) and strobe duty=009 and strobe phase 000 is identical to 120hz lightboost 10%. Same persistence, same strobe crosstalk (because of VT tweak).

Benq blur reduction works at all custom refresh rates (except 50hz and 76hz). Some sub-100hz refresh rates require a particular VT tweak value or it wont sync right and will pause/stutter/pulsate the backlight wrong (85hz requires VT 1501 only). All refresh rates lower than 100hz require single strobe=on, or they will double strobe at preset refresh rates without a VT tweak (85hz without VT tweak and 60hz will double strobe with single strobe set to off).

[chandler]

how do I VT tweak a monitor ? and why not use 144?

and how do I minimize crosstalk & ghosting? with the vg248qe there's a hell of a lot. I notice it very easily especially on plain white.. and even moving my mouse across the desktop

[Falkentyne]

All that stuff is explained in the sticky. Every question you just asked is in the sticky. I even put screenshots SHOWING the minimized ghosting and yet you're asking how to do it. I'm not going to type out what's already been done. You can also use the search feature as there are countless posts on that already.

BTW the VG248 has absolutely NO ghosting whatsoever.
With lightboost disabled, tracefree=60 has the lowest ghosting of any monitor that's not an Eizo Foris FG2421.
With lightboost enabled, the monitor needs to warm up for an hour for inverse ghosting to be removed and the gamma not to drop down to 1.4 (a common problem with that M240HW01 panel). Once the monitor has been been warmed up, any remaining Lightboost ghosting can be set to zero, by going into the service menu and setting "OD Gain" from 0F to 0C, and then setting the Contrast to 0. Drawback to that is contrast drops below 200:1.

The XL2720Z can equal "Tracefree=60" (with lightboost disabled) in ghosting (blur reduction disabled), but that requires a profile switch bug, which is explained in the sticky (with screenshots).

[chandler]

Ty so much Falken, people sure are right on here saying ur a monitor GURU

I tried going through the sticky but then again I have to have the 2720z in front of me so I could start tweaking it accordingly ..

one last question and FORGIVE ME if u said it already, I found chief's optimal strobe utility settings thread, and he said there to create a resolution at 1350 VT, and u said here to go for 1500 @ 120hz ... so what should it be?


EDIT: Ive finally come to understand how to do everything, I just dont get the crosstalk , thats the last thing I need to completely understanding all of that. I tried reading about it but couldnt reach anything conclusive... for clearest motion (nevermind the inputlag for a sec) do I need to go all the way to the left where it says "Earlier strobe phase" ? or the other way around?

[Falkentyne]

Higher values of VT reduce strobe crosstalk more, as the vertical blanking period is longer during each strobe.

VT 1350 tweak was found before VT 1500. Masterotaku was the one who found the max range.
Lightboost's accelerated scanout uses the equivalent of VT 1500.
Lightboost 10% at 120hz on VG248QE is exactly identical, pixel for pixel, to 1920x1080, 120hz, VT 1500, Strobe Duty=009, Strobe Phase=000 on all the Benqs (XL2411Z, XL2420Z, XL2430T, XL2720Z), but Benq has more overdrive ghosting.
(the ghosting can be reduced by setting AMA to "high" after enabling blur reduction, as explained in the sticky).

Another shortcut is shown in this video at 3:15.
https://www.youtube.com/watch?v=Ib8rLMPr6ew

I found out that the "VT 1497-1502" range was the range used internally by Lightboost, but done through the LC panel directly to the scalar. I also found out that VT 1350 works fine at 120hz (but has more crosstalk than VT 1500) but VT 1350 is NOT stable at 100hz at all. But VT 1354 is.

VT 1500 is stable at both 100hz and 120hz.

I say use VT 1500 because VT 1502 is not reliable at 120hz. Sometimes the monitor will start frameskipping and the backlight will "Pulsate" with VT 1502. VT 1500 is much more stable.

There is no difference in crosstalk reduction between VT 1497-VT 1502. However each value may be more or less stable to the scalar. For example, 85hz only works with VT 1501.

Don't worry about the strobe utility. The crosstalk "labels" are wrong on the utility. Me and Masterotaku found this out with our own testing.
Strobe phase 000= "later strobe phase" (up to 1 frame higher input lag) and "strobe phase 100"=earliest strobe phase (up to 1 frame lower input lag at the top of the screen), although it's a bit more complicated than that. The strobe utility is capped at 047 (afaik) to prevent users from shutting the backlight off. It was originally designed for 120hz operation with a VT tweak. The strobe utility is simply a front end for the Service Menu adjustments of "Strobe duty" and "Strobe phase." The "Allow custom adjustments" checkbox was due to a bug in the V2 firmware. This bug was fixed in V3 and newer.

A VT tweak will LIMIT the maximum strobe phase from 100 to a lower value. Going too high will make the backlight shut off until you disable blur reduction.

You're starting to make me repeat what is in my sticky and it's really wasting time. And please don't be so pushy. Literally everything you have asked me is there.

Strobe phase 000 is equal to lightboost's setting.

I think I've said enough. I want to go play some videogames now.