Blur Busters Forums

I don't think I am doing this right. I have setup the ToastyX, Blur Buster Strobe utility, and Color profiles but I don't think I have everything right.

First of all when I turn on Blur Reduction is is EXTREMELY dark, it can't be normal. Also when I run the alien test it still looks blurry.

I also installed that setting to allow my DVI-D to go above 300mhz or whatever.



Settings


I followed this tutorial http://www.blurbusters.com/benq/strobe- ... ersistence

I am not sure about this part in the Additional Improvement In Ghosting: “Vertical Total 1350″ section:

Switch to your newly created mode. You are now using Vertical Total 1350.

How do I switch to the newly created mode?

Is there anything else I can do to make my screen a bit brighter? It is barely useable in games.

Does moving the persistence meter up improve brightness? because ULMB is pretty dark because the backlight is turning off 120 times a second. to change the mode just restart your computer or your GPU drivers and set it to 120hz in advance settings of the screen resolution panel in windows and it will be set.

Edit: oh yea, and the ghosting is because you are getting a little part of the previous frame or next frame in the current frame being shown, lowering the persistence or moving the crosstalk so the current frame appears in the centre of the screen is best.

I think I figured it out. Embarrassingly I was using the wrong dvi outlet! I got it working for a while then I replugged my TV in to the normal DVI connector and restarted. Windows/AMD CCC still thinks that I am running in 120hz but when I go to the monitor System>Information it still says Current Resolution 1920x1080 60 implying I am running at 60hz.

Is there any easy way to know for certain what Hz I am running at without having to rely on eye?

I changed my resolution to 720p and went back to the monitor system info and it read 144hz..

lsdmt wrote: Is there any easy way to know for certain what Hz I am running at without having to rely on eye?

What you choose in the refresh rate options in Windows/CCC/Nvidia CP is always true, although it doesn't specify decimals.

One way to measure it perfectly is using Media Player Classic and pressing CTRL+J. It will tell your refresh rate with high precision. For example, it says I'm using 119.87831Hz (I created a 119.88Hz custom resolution instead of plain 120Hz, for 23.976fps content).

masterotaku wrote:
One way to measure it perfectly is using Media Player Classic and pressing CTRL+J. It will tell your refresh rate with high precision. For example, it says I'm using 119.87831Hz (I created a 119.88Hz custom resolution instead of plain 120Hz, for 23.976fps content).

Hmm MPC says 120Hz so I guess that is what I am running at. Any idea why the info section of the monitor would think differently?

It's actually too complicated to explain.
But the easy version is, the monitor reverts to using a 60 hz backlight strobe width for the backlight (NOT the refresh rate--the strobe width (persistence) whenever it is being run out of specifications.

There's a comment on that here.
http://display-corner.epfl.ch/index.php/BenQ_XL2411Z

I'm going to use 100hz as a fast example.
Without a vertical total tweak at 100 hz, strobe duty 001 would be 0.1 ms persistence. and the max strobe duty 030 would be 3.0ms persistence. (0.1ms persistence added per point). The higher the persistence, the brighter the screen and the less blur reduction effect you have. The lower the persistence (strobe duty value or that slider) the dimmer the screen and the greater effect of blur reduction.

Persistence is basically how often the backlight is turned off and on (this is what strobing /blur reduction does).

You can see the display corner website says that the minimum backlight pulse width at 100 hz is 0.1ms
So a strobe duty of 010 would give 1.0ms persistence.

Now VT tweaks force the monitor to use the 60 hz backlight pulse widths instead of 100 hz. (Do NOT confuse this with refresh rate!).
Normally at 60 hz refresh rate (if you are using SINGLE STROBE "ON" through the service menu or have the box checked in the windows utility; the windows utility just turns on single strobe for you), the lowest persistence is 0.167ms and the highest persistence is 5.0ms.
(30 levels of strobe duty. 0.167 x 30=5).

Yes, the backlight is on/off for a 'longer' length of time at 60hz refresh rate (0.167 ms for strobe duty 001) than it is at 100 hz ( 0.1ms ).

Using a VT Tweak, for some reason, forces the monitor to switch to the pulse widths for 60 hz. Thus, whether you are at 100 hz refresh rate or 120hz refresh rate, strobe duty 006 now becomes 1.0 ms persistence instead of the values shown on display-corner. Thus, the screen becomes brighter. (without a VT tweak, strobe duty 006 would be 0.48 ms at 120 hz, but WITH a VT Tweak it's 1.0ms--the screen is TWICE as bright

Well, WHY?
Uh...tbh its something to do with the monitor's own scaler thinking it's running at some new resolution, because the vertical total has been changed (you can only see this with version 4 firmware, in the "second" service menu). This scaler change defaults back to 60 hz, and it also messes up the "display mode" aspect settings, causing aspect to suddenly be available and used at 1920x1080 when it shouldn't be available (the scaler thinks the horizontal width is 1280 with a VT 1500 tweak or 1600 with a VT 1350 tweak. whatever.....)

The easiest way to see if a VT tweak has actually worked or not is to check the OSD Information. if it says 60 hz, it worked. If it says 75, 100, 120 or 144 hz, it didn't.