Blur Busters Forums

You can only use VT tweaks at lower resolutions if they are scaled from 1920x1080, e.g. if display-gpu scaling is enabled. This works fine, but you won't be able to use the monitor scaling features with VT tweaks (they become improper and wrong aspects completely). You can't really use a VT tweak on a resolution that is not native (e.g. CRT resolutions), because the vertical total gets lower the lower the resolution is. I mean you can --try-- it and see if it works, but don't expect to be able to use 1500 VT. Try making a custom resolution and see. Don't be surprised if it goes out of range, though.

Some custom resolutions will not work correctly (really weird strobing, refresh rates showing as 144 hz when you enter 100 hz, but the OSD showing the correct res) unless you enter it as a CRT automatic resolution. One example is 1600x1200@100 hz. Entering that as a detailed custom /manual resolution (or LCD automatic) will cause the OSD to show 1600x1200@144 hz, and blur reduction to be...ahem...BLURRY. It will be super blurry if single strobe is ENABLED, and smooth if single strobe is disabled (which is a bug, because the monitor is not synching with those settings correctly...single strobe is supposed to always be on at >76hz refresh rate.

If you enter 1600x1200@100 hz as a CRT automatic resolution, then it will work much better...single strobe won't be super blurry, the strobe pulse won't be in a weird location (like at the center of the screen), and the OSD should show 120hz (even though you entered 100). (I think the polarity will show up as +- instead of ++)

You can imagine with just getting a detailed resolution like 1600x1200 to be accepted, that YMMV if you try to put vertical total tweaks into the mix)

TBH, if you don't intend to use full screen with lower resolutions (like 1280x720@120 hz), you don't need the VT Tweaks, anyway. if you plan to use 1:1 or screen size emulations (display mode in the OSD) with lower resolutions, you're better off just making a 'standard' or detailed resolution without a VT tweak and using a smaller screen size or 1:1. The crosstalk strobe pulse settling errors should be at the edges of the top and bottom at lower resolutions that are not stretched to fullscreen.

VT 1500/1502 at 85hz causes massive stuttering and a pulsating backlight on 2720Z (yet 91hz with 1502 VT is fine) :/.
1350 is fine at 85 hz.

Falkentyne wrote:VT 1500/1502 at 85hz causes massive stuttering and a pulsating backlight on 2720Z (yet 91hz with 1502 VT is fine) :/.
1350 is fine at 85 hz.

I edited the OP with a warning. If you find more timings that don't work with your monitor, tell me.

sent you a PM but found this out:
-------
Found the single strobe always on cutoff
It's 86 hz.
86+hz ALWAYS single strobes.
85hz and lower double strobes.

And funny enough, 86 hz works fine with VT 1500
85hz only works with VT 1350 (1500 VT=pulsating backlight/jittery screen/bad pulses or something)
EVEN STRANGER:

85 HZ WITH BLUR REDUCTION TURNED OFF AND VT 1500/1502 STILL PULSATES THE BACKLIGHT AND JITTERS THE SCREEN! Just the presence of the VT 1500/1502 tweak makes it happen (1350 no issues).

Not going to try 84hz. No, sirree!

Even stranger:
85hz with default settings (1125 VT=stock), OSD shows 1920x1080@85 hz
86hz with default settings (1125 VT) OSD shows 1920x1080@60hz.

Seems like any time any timing (including custom refresh rate) varies from a normal setting the backlight or strobe pulses revert to 60hz...(or whatever is telling the OSD to report 60hz...)

(These results are for the 2720Z only. Seems like the 2420Z works fine at 85hz VT 1500 AND 121hz and VT 1155 (this activates lightboost 121hz if it was unlocked by the driver previously).

I play CS GO at 1024x768 with black bars. Will i be able to use the VT trick correctly? I'm on a xl2430t if that matters

koldolmen wrote:I play CS GO at 1024x768 with black bars. Will i be able to use the VT trick correctly? I'm on a xl2430t if that matters

You won't have any problems. If you use the same timings as your 1920x1080 resolution at the same Hz, switching from one to the other will be instantaneous . Active pixels still need to be 1920x1080. You only have to change resolution in the upper part.

koldolmen wrote:I play CS GO at 1024x768 with black bars. Will i be able to use the VT trick correctly? I'm on a xl2430t if that matters

If you don't care about crosstalk (just using strobe phase 000 and dealing with the bottom of the screen having crosstalk which is NOT bad for CS:Go, where middle and top are most important, try this:

create custom resolution:
1440x1080@120hz (NOT 100hz!), manual settings,
VT 1125.

Set desktop to 120hz, set csgo to 1440x1080,
Go to monitor OSD, select either aspect or 1:1--they are exactly the same (prefer 1:1 because if you select aspect and alt tab to the desktop WITH a VT tweak active, ur desktop will look VERY wrong (or even swimming pixels at 1920x1080).

For 100hz --this will be GPU scaled since you defined 120hz as a custom, so in your GPU video drivers, select 1:1 or aspect (NOT scale to full screen), then you'll have perfect mapping at 1:1 too, and the HIGHEST 4:3 possible on a 1920x1080 panel.
100hz will be downsampled 1920x1080 and if you have a VT for 100hz, it will use that (and of course, bug the OSD) so make sure aspect is not selected in OSD (1:1 is still greyed out on VT tweak bugged OSD's so that's fine).

This is 4:3 with FULL 1:1 100% non interpolated pixel mapping and NO black borders at top or bottom! Just left and right!

The reason why I said do not create 100hz custom 1440x1080, is because for some reason, the monitor will grey out both aspect and 1:1, as if it were GPU scaled from 1920x1080 (but the OSD still shows 1440x1080@100), *AND* the GPU scaling options WILL STIILL NOT WORK (unless you have forced gpu scaling on for all resolutions...you usually don't want that on; possibly adds input lag, and toggling it on initially may stop the windows blur reduction utility from finding the monitor until the driver is restarted (annoying).

Is it normal that I get out of range on my XL2411z v2 when trying over 1350VT @ 120hz?
Also what's the point of using that instead of 144hz without VT tweak? (since they have same pixel clock, 356.40 mhz) is it about motion will be smoother if my GPU produces closer fps to 120?

With custom resolution in nvidia control panel I can get 1502 and apply it as resolution and it works but in Toasty it gets out of range.
What am I doing wrong?

zefs wrote:Is it normal that I get out of range on my XL2411z v2 when trying over 1350VT @ 120hz?

It depends. There are some VT ranges that give out of range errors. Like 1400VT, I think. Jumping to 1500VT solves it.

zefs wrote:Also what's the point of using that instead of 144hz without VT tweak? (since they have same pixel clock, 356.40 mhz) is it about motion will be smoother if my GPU produces closer fps to 120?

With blur reduction, you'll get a lot more crosstalk at 144Hz than at 120Hz with the VT tweak. Without blur reduction, 144Hz is better.

zefs wrote:With custom resolution in nvidia control panel I can get 1502 and apply it as resolution and it works but in Toasty it gets out of range.
What am I doing wrong?

If it works in the Nvidia CP, save that resolution there and don't do it in ToastyX CRU. It isn't necessary. You're probably using different timings apart from the VT.

Here's my settings, it seems to work since if I apply the default resolution (1920x1080 @ 144hz) which is listed in the list there is a difference in brightness. Are those the values you are using as well? I hope there's no issue using these settings for 24/7 usage?