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Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Discuss BENQ Blur Reduction (strobe backlight) and the Blur Busters Strobe Utility. For Z-Series monitors (V2 firmware) on XL2411Z, XL2420Z and XL2720Z.

Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Falkentyne » 02 Dec 2015, 12:54

Posting this in the Benq section even though I had this in General, seems some people are missing it.

1) XL2720Z/XL2420Z/XL2411Z --REMOVE THE HARD BLUE UGLY GHOST TRAILS OF AMA HIGH IF BLUR REDUCTION IS DISABLED
Requires V3 or newer firmware.
XL2720Z has a more drastic improvement than the 24" monitors.
(note: this is also mentioned below as well, but someone just had a massive improvement recently on his XL2411Z so I'm bumping this to the top!):

This requires all of these steps.

a) Save standard mode (recommended settings: Brightness 20, contrast 45, AMA high, blur reduction OFF, Sharpness 5, Gamma 4, RGB 100, 100, 92) to Gamer preset #1

b) Save another copy of the same settings, but with blur reduction ENABLED, to gamer preset #2

c) Enable gamer preset #2; Blur reduction will be on.

d) Move to Picture->AMA and press enter once so "High" is highlighted, then press back (or button #4).
Alterntively, move the AMA slider from high to off/premium then back to high, to OVERWRITE the current AMA high setting with an undocumented lower level version.

You can test to see that something happened by using the alien invasion ghosting test: http://www.testufo.com/#test=photo&phot ... &height=-1

5) If you are using blur reduction, you can stop here. Notice any change to ANY strobe settings whatsoever, monitor BRIGHTNESS, or any refresh rate change will revert the changes you did. If you do this on an XL2720Z, overdrive is reduced drastically, so you may need to reduce contrast to get rid of extra normal (not inverse) ghosting. XL2420Z and XL2411Z stilli show some improvement.

6) Massive improvement to blur reduction off's excessive AMA high setting: Right after doing step #4, instantly activate gamer profile #1 WITHOUT DISABLING BLUR REDUCTION THROUGH THE OSD. Disabling blur reduction will use the default AMA high which is beyond horrible. Disabling blur reduction by going through a preset will use the previous AMA setting activated (from step 4) which is actually a bug we are using. Blur reduction will now be disabled, and the AMA setting will be MUCH more tolerable, more like what you are used to on Asus and Acer monitors. You can change brightness now, but any refresh rate or resolution change will RESET THE AMA back to the default "high" which is horrible.

-----------------------------

To unlock the factory and service menus:

Factory menu:

1) power off via power button.

2) XL2411Z only: hold button #3 and button #5 with the power off, for 5 seconds, then press power while still holding them down. Release them after the screen appears.

2a) if nothing happens at all when the power button is pressed (this is most common after a firmware update or an AC hard power off), press power to give the monitor current, then after you get a display, power the screen off again, and then start sequence 1 again.

2b) XL2420Z, XL2430T, XL2720Z and XL2730Z, XL2735: buttons 3 and 4 with power off for 5+ seconds, and then pressing the power button while continuing to hold the buttons down, will unlock the factory menu.

3) button 5 enters factory menu.

(SERVICE MENU e.g. Strobe settings):

To enter the service menu (XL2420Z, XL2430T, XL2720Z and XL2730Z) with the single strobe (for single strobing refresh rates lower than 100hz), strobe duty, strobe phase and other settings: Turn off the monitor, then press and hold menu button #2 from the bottom. While holding this button, press the power button to turn the monitor on. The lights will flash, and when the monitor has turned on press button #2 once to enter the service menu.
In the service menu use button #5 (up), #4 (down) and #3 (select) to navigate the menu

5) For the XL2411Z (also the older XL2411T), it's button #2 (down button) for 5 seconds with power off, instead of button #4, then press power on+button #2

6) ON ALL S-SWITCH VERSIONS:
You can enter STANDARD MODE from any other mode preset, by holding down the top (back/exit) button on the s-switch, for 8 seconds+, then releasing.
You can save a preset to a gamer preset by holding down the preset button for 8+ seconds.
(May or may not apply to XL2430T and XL2730Z).

Note: the XL2730Z does not have the single strobe setting.
The XL2730Z will NOT strobe in sync at ANY refresh rate lower than 120hz!

*XL270Z specific feature--undocumented -- AMA low setting --removes ALMOST ALL INVERSE GHOSTING, adds normal ghosting, which can be removed by lowering the contrast setting!

1) enable blur reduction FIRST.
2) set AMA to high afterwards. If it's already on high, move slider to off/premium and back to high or just press Cancel (back button).
Or you can just highlight high and instead of pressing button #3 (enter), press button #4 (back); does the same thing.

Ghosting quality is far improved. This works best with a contrast setting of 10, based on 100hz refresh rate. Higher or lower refresh rates may be best with slightly different contrast. Gamma settings also affect this.

*NOTE: any change to preset profiles (except V5 firmware blur reduction off profile switching), resolution, refresh rate, Brightness (OSD) setting, (service menu --> Strobe Phase, Strobe Duty or Single Strobe On/Off) will instantly revert the AMA back. Contrast and Gamma and Color RGB, sharpness and black equalizer settings are safe to use.

The factory menu in the XL2730Z has a lot more useful (and arcane) debug information than in previous monitors.

Vertical totals, Strobe information, "Accelerated scanout" and the scaler: the scaler resolution (the resolution used internally, not the physical resolution) is shown in the factory menu (V3+firmware only). The Vertical Total affects the scaler resolution. Even the smallest change in default VT will affect the scaler. E.g. using a 1125 vertical total at 120hz (the default VT is 1144) will cause the scaler to report 1400x1050@120hz instead of 1920x1080@120hz.

Basic information on creating VT tweaks is on the main website FAQ As well in the Benq section of this forum.
But I'll just summarize: you need ToastyX custom resolution utility from here:
http://www.monitortests.com/

For DVI connections, you will need the AMD or Nvidia pixel clock patcher for VT tweaks if the DVI dual link clock exceeds 330.00 mhz.
You will *NOT* need a patcher for displayport connections.

For basic timings, you want to create "LCD standard" resolutions under detailed resolutions for 1920x1080, for the refresh rate that you use the VT tweak for. Create LCD standard first (not manual yet, and don't just edit the 60hz entry that's already there unless you're intending to use a VT tweak for 60hz), so the default timings are created. For example if at 100hz and 120hz refresh rate, if your porch and sync values are 88 and 44, and horizontal total is 2200, then you did it wrong, those are for 60hz only. Once you create a LCD standard detailed resolution, then edit it and choose "manual" and you can change the Vertical total timings (or the Horizontal total for certain instances, like 120hz over displayport, to maintain 8 bpc color) as you desire.


Some technical information on what the VT tweaks do for strobing;
If the VT is increased past the default VT, the scaler switches to 60hz backlight strobe pulse widths (0.167ms per point of strobe duty = 0.167ms persistence at strobe duty 001, 0.167ms x 30=5.01ms at strobe duty 030).

The strobe crosstalk is determined by the internal vertical screen size the scaler is working with for strobing. Using a VT of 1497-1502 forces the scaler to work with a "Lightboost type accelerated scanout" equivalent of a 1440 vertical screen size (thus the reported resolution of 1280x1440)=25% lower strobe crosstalk, just like 1080 ->1440->25% larger size, because the scaler is calculating strobes for a 1440p vertical size on a 1920x1080 physical panel, driving most of the crosstalk "off" the physical range of the screen, but possibly degrading image quality slightly (faint scanlines effect on the screen, just like in Lightboost mode). it seems that Lightboost uses VT tweaks internally, which is why the highest VT is 1502, and why strobe crosstalk at 120hz lightboost 10% is pixel for pixel identical to VT 1500/120hz/strobe phase 000+strobe duty 009 (1.5ms persistence).

You can actually use this scaler trick to trick the monitor into accepting a 2560x1440 native resolution (scaler supersampling/downsampled): 2560x1440, front porch 48 pixels, 3 lines, sync width 32 pixels, 5 lines, Horizontal total: 2656, Vertical total 1500. Pixel clock will be 398.40 at 100hz. Only works from 61hz-100hz in 1 hz increments. 120hz will cause extreme artifacting in Displayport mode, black screen in DVI, due to scaler limitations. the strobe crosstalk will look identical to 1920x1080 without a VT tweak active. This will work over DVI with the pixel clock patcher. Displayport will be run at 6 bit color due to DP limits (8 bit color tops out at 360.00 MHz, 6 bit color tops out at 480 MHz)

Note: turning off "instant mode" seems to prevent the scaler from using the vertical total to calculate strobe timings when using VT tweaks (thus VT gets ignored; any faint scanlines effect from VT 1500 will be gone), but at 120hz+, the screen will become scrambled.

The XL2730Z uses a realtek scaler and seems to ignore vertical totals increases for strobe crosstalk reduction, unfortunately, even though higher VT's are accepted and shown by the debug information (similar to instant mode off on the older Z series).

*Edit*
On an XL2720Z at 100hz VT 1350 doesn't sync correctly. whether or not blur reduction is on or off. There are occasional pauses and frameskips even with MBR off, although it's easier to see if its on. VT 1354 works correctly. Both VT 1500 and VT 1502 also work correctly.

On an XL2720Z at 120hz, VT 1502 doesn't always sync correctly. VT 1499 and VT 1500 are fine. Oddly enough at 125hz, VT 1502 syncs correctly (sometimes it may go out of sync and stutter if you spam the S-switch profiles, though), same with VT 1498 (VT 1500 was a bit problematic). Here are some solid VT totals on XL2720Z only (with no frameskipping or a <5% chance of frameskipping; if it happens just press the S-switch to retoggle the monitor); they may differ on the 24" versions!

These VT's work best :
*notice* for VT tweaks, excluding 60hz, you should use the base default values for 100/120hz, as shown:

1920x1080, front porch 48 pixels, 3 lines; sync with 32 pixels, 5 lines; Horizontal total 2080, vertical total 1354/1360 (60hz), 1360 (75hz), 1354 (100hz; low reduction of crosstalk), 1497-1502 (high reduction of crosstalk, most refresh rates, use whichever value does NOT cause frameskipping in this test:http://www.testufo.com/#test=photo&photo=alien-invasion.png&pps=960&pursuit=0&height=-1
; frameskipping is very easy to notice with blur reduction)

For high reduction of crosstalk, these VT's are most reliable on XL2720Z. The 24" monitors may show different results.

125hz: 1497
120hz: HT 2001, VT 1499 (Displayport input; reduced HT to keep 8 bpc over displayport), VT 1500 (DVI input). I did not test VT 1350-VT 1354, but if you want lower/no faint horizontal lines artifacts but with more strobe crosstalk, HT 2080 and VT 1350-1354. Always test for frameskipping in TestUFO alien invasion !!

100hz: VT 1502, VT 1354 (VT 1354 has 18% more strobe crosstalk than VT 1502, but no faint horizontal lines scanlines artifacts. Chief's recommendation of VT 1350 *always *frameskips on XL2720Z so it's unusable, but its sporadic. Maybe XL2411Z and XL2420Z don't frameskip. I recommend VT 1500/1502).

91hz: VT 1498 (VT 1502 works but has a small chance of frameskipping. 91hz is for Call of duty framerate limits on some versions)
85hz: VT 1501 (all others frameskip heavily on XL2720Z)
80hz: VT 1498, VT 1501 (VT 1502 will frameskip at least once every 15 seconds)
75hz: VT 1360 (no frameskipping)
60hz: VT 1354, VT 1360 (displayport only; for DVI see masterotaku's recommended settings. The pixel clock at VT 1350'ish area interferes with the single link DVI limits which isn't a problem over DP)

For most other bizarre custom refresh rates, you will have to test. Usually VT 1502, VT 1498 and VT 1500 tend to work more often than the others.
----------------

Some XL2720Z *Display scaled* custom downscaled resolutions (scaler supersampling) that work: (XL2720Z, XL2420Z is mostly untested).

1) 2560x1440@100hz (displayport and DVI with pixel clock patcher, works on XL2720Z, 2420Z, 2411Z and maybe 2430T): use HT 2656-2720, VT 1498-VT 1502. (front porch 48 pixels, 3 lines; sync width 32 pixels 5 lines). Pixel clock 408.55 MHz @ HT 2720 and VT 1502. Monitor will run in 6 bits per color due to 360 MHz displayport 8 bpc limit (monitor does not support high bit rate 2)
Crosstalk will be identical to XL2730Z's default crosstalk at 2560x1440@100hz.

2) 2560x1440@115hz (Displayport ONLY): Use HT 2641 and VT 1497. Pixel clock 454.67 mhz. Any higher will give you shimmering pixels. You are pushing the scaler past its limits. YMMV.

3) 3200x1800@60hz (displayport ONLY): HT 3360, VT 2220, pixel clock 447.56 mhz. Yes this is the VT range for 4k (3840x2160). Monitor will show an out of range black screen error with default VT for 3200x1800 (VT tweaks at work again).
*MONITOR BACKLIGHT WILL SHUT OFF IF SINGLE STROBE IS TURNED OFF. With single strobe enabled, monitor will *DOUBLE STROBE*. Strobe adjustments will not do anything. Strobe scaler was not meant for these timings. OSD will report 1080p@24.

4) 3840x2160@30hz (displayport only, automatic timings): yes it works. Yes it's useless and laggy at 30hz. Input lag is off the charts (I used the VT from this to get 3200x1800 working).

5) 120hz with high VT Tweak over displayport, 1920x1080 8 bits per channel trick (usually the monitor switches to 6 BPC if you use a high VT tweak at 120hz over displayport; DVI with clock patcher applied does not have this limitation: (applies to XL2420Z and XL2430T also).
HT 2001, VT 1499 (front porch 48,3 ; sync width 32,5) keeps the pixel clock at 359.94 MHz for 8 bits per channel color.

*EDIT* This seems to only keep 8 BPC on an AMD Video card. It looks like Nvidia is forcing 6 BPC For some reason, but at 356 mhz, it's 8 BPC (done by testing the "Invalid" VT of VT 1481-VT 1485 (Out of Range, but display still appears). Desktop users will at least get a display with 6 BPC (2001/1499, 120hz), but I was trying with a Geforce 1070 laptop, which (probably due to a bug) was forcing 8 bpc at all times on a XL2720Z hooked to its mini displayport connector, and if 6 BPC were ever forced (by a very high VT)=black screen. I don't have a desktop Nvidia card (which would not give a black screen at 6 bpc), but you can try using the NVCP for this one to see if it helps: but instead of 1499 VT, try 1498 VT. (so 2001 HT, 1498 VT, 120hz, through NVCP), and check the bit depth.

6) High values of strobe phase give you ONE FRAME of lower (faster/reduced) input lag than strobe phase 000. Strobe phase 000 gives you lowest crosstalk at the bottom of the screen. Changing strobe phase to a higher value pushes the start of the strobe (backlight on/off cycle) EARLIER into the refresh rate. Max strobe phase without VT Tweak is 100 (1 frame improved input lag vs strobe phase 000).
Max strobe phase WITH VT Tweak depends on refresh rate--going any higher will shut off the backlight:

these are based on a Vertical total 1497-1502 range (1280x1440 scaler resolution shown in the factory menu).
125hz: 047
120hz: 049
100hz: 059
91hz: 065 (single strobe=on)
85hz: 070 (single strobe=on)
75hz: higher than 85hz (Note this uses VT 1360; attempting to use VT 1500 will go out of range 90% of the time).

Using a vertical total higher than the default VT for the refresh rate makes the backlight switch to the 60hz strobe pulse widths.
TFTcentral has a nice article on what a "pulse width" actually is

http://www.tftcentral.co.uk/articles/motion_blur.htm

--------------------------
XL2720Z Blur Reduction off AMA LOW TRICK* --absolutely NO OVERDRIVE GHOSTING.
(this has been tested on XL2720Z V5....I do not know if it works on V4. The blur reduction AMA low trick works on V3 and V4 though).


1) activate XL2720Z blur reduction AMA low mode by (a) first setting blur reduction to enabled, then going to AMA, moving AMA slider from high to off/premium then back to high (or just highlight high and press cancel (button #4).

2) use profile presets or S-switch to activate Standard mode (you must have blur reduction set to off previously in this mode you are switching to).

Unlike blur reduction AMA low mode, changing brightness does not reset the AMA if blur reduction is off. Changing refresh rate or resolution, however, will revert the AMA.

(note: blur reduction on AMA high (setting AMA to high when blur reduction is off and then enabling blur reduction) by default has a slightly lower overdrive setting than blur reduction off AMA high). You can get blur reduction off use the "slightly lower" AMA high setting by doing the same thing--switching to a preset profile that has blur reduction off. Doesn't look as good as AMA low blur reduction off, though!

No, people, you cant just set MBR AMA to low then turn OFF blur reduction...for some reason turning off blur reduction directly resets the AMA. But changing the profile preset seems to avoid this (Another beneficial bug, eh, Benq ? Just like our VT tweaks?)

This now makes the XL2720Z (with blur reduction off) look identical to Asus VG248QE with Tracefree=60.
And you can keep the contrast high also without needing to lower it
(AMA low with blur reduction enabled requires contrast 5-15 or there's a lot of normal, instead of inverse ghosting).


(remember in order for this to work with blur reduction off, you must first enable AMA low with blur reduction ON, then switch directly to a preset that has blur reduction off. Just turning off MBR does not work).

I might flash back to V4 later with the Mstar ISP unit to see if this works on V4 firmware.

*THERE IS ABSOLUTELY NO reason in the world NOT to use this AMA low mode if you do NOT use blur reduction! There is absolutely NO drawbacks to it, unlike blur reduction on AMA low, where the drawback is you have to lower the contrast to not have too much normal ghosting. Looks PERFECT with contrast 43.

----------------------------

Just in case the above steps led to any confusion, I have another explanation I wrote which should make it even more clear:

BLUR REDUCTION OFF PERFECT OVERDRIVE CALIBRATION for XL2720Z (firmware bug exploit); V3-V5 firmware. 24" panels benefit also but to a far lesser level: NO white ghosting trails, NO coronas, looks BETTER than VG248QE and VG278HE ! Makes ghosting on XL2720Z look better than any monitor on the market. This is for people NOT using blur reduction.

1) Set standard mode to blur reduction off, AMA high, contrast 43 (correct white delta). Save it to a gamer 1-3 preset (otherwise you need to use the 10 second S-switch standard mode quickselect).

2) set a gamer preset next to the first one, to blur reduction on, AMA high

3) activate MBR on preset with S-switch (XL2411Z users need to do it the long way).

4) Activate the "AMA low" XL2720Z toggle by setting AMA to high after MBR has been enabled (as mentioned above).

5) Activate the blur reduction off preset directly. If you did not save one, hold down "Enter" on the S-switch for 10 seconds then release it. This switches to standard mode (which I Hope you set with MBR off as I said in #1).

6) Standard mode (MBR off) will now avoid AMA recalibration from turning off MBR, and will use the AMA low setting instead of the default setting for MBR off. Ghosting will be _perfect_ (you will have sample and hold motion blur still, of course) but NO coronas, NO white trails following dark objects, and no normal ghosting or inverse ghosting. Compared side by side with VG248QE at tracefree 40/60, this looks better. 60hz-144hz all look great with this.

Note: changing resolution or refresh rate resets the AMA back to the aggressive AMA high level. Changing strobe phase/duty/single strobe or OSD brightness will not revert the AMA as blur reduction is off.

XL2411Z and XL2420Z (V3+ firmware) also benefit from this but to a far lesser level. There is NO reason NOT to use it as its much improved over default, but there is still some inverse ghosting. XL2430T has not been tested.

-----------------
*Relationship between Strobe Duty, Strobe phase, refresh rate, and persistence values (aka strobe pulse width values; total strobe persistence = base strobe persistence x strobe duty value):

Pulse widths (base persistence at strobe duty 001) = Refresh rate persistence / Maximum strobe phase
Or alternatively:
Maximum strobe phase value = Refresh rate persistence / base strobe persistence.

E.g. with VT tweak @ 120hz which forces .167ms persistence base value:
Max strobe phase = 8.3 ms / .167 ms
Max strobe phase = 49.7

120hz without VT tweak:
Max strobe phase = 8.3 ms / 0.083 ms (note: 0.083ms is 8.3 divided by 100)
Max strobe phase = 100

Refresh rate persistence is always based on the current refresh rate, this applies to oddball refresh rates like 80hz, 91hz, 85hz, 75hz etc as well.

Refresh rate persistence= 1000 divided by current refresh rate in milliseconds, e.g. 60hz=16.7 ms, 100hz=10 ms, 120hz=8.3ms, 144hz=6.9ms.

VT tweaks force the Pulse Width base persistence to 0.167 ms (=the 60hz pulse widths), so since the refresh rate persistence remains the same (with or without a VT tweak at the same refresh rate), the MAXIMUM STROBE PHASE allowed is reduced. Going beyond the max strobe phase will shut off the backlight. Check the math--it's easy and adds up. Normally, the maximum strobe phase is 100, when not using VT tweaks (and sure enough everything adds right up, based on the strobe phase max values I listed way above). However, when NOT using a vertical total tweak, the maximum strobe duty does NOT decrease as the strobe phase reaches 100; there seems to be a buffer to prevent this from happening. You would expect that strobe phase 100=max strobe duty 001, strobe phase 099=max strobe duty 002, but there seems to be a buffer to allow higher strobe duty at the max strobe phase.

Using a VT tweak seems to REMOVE this buffer completely (which should also improve input lag by a TINY amount as well), so at the max strobe phase before the backlight shuts off, the strobe duty is always 001; at the max strobe phase -1 (minus 1), the max strobe duty is always 002, and so on...(Chief mentioned that using a VT tweak somehow improves input lag, now we know why; note though that strobe phase of 000 has 1 frame HIGHER input lag than max strobe phase, as lowering the strobe phase pushes the strobe into the *NEXT* rendered frame instead of the CURRENT rendered frame (100 strobe phase or max strobe phase with VT tweak)

*edit*
Linked some XL2720Z only 60hz and 100hz Blur reduction OFF + "perfect overdrive" AMA low pictures, and some improved AMA low blur reduction on pictures:

http://www.overclock.net/t/1580147/xl27 ... -off-trick

Some AMA "low" blur reduction on pictures (comparing the default AMA high and the undocumented toggle AMA low) here:
http://www.overclock.net/t/1576752/best ... -gaming/20
----------
Stuck 60hz at 2560x1440 on XL2730Z (displayport) fix: (assuming you are using a certified DP 1.2+ cable)

1) Power off
2) Hold Button 3 and 4, Power On ( while still holding Button 3 and 4 ), after 5 seconds release it.
3) Click any OSD Buttons, enter Menu and it will display the Factory Settings Menu, navigate it via the OSD Buttons, select CLEAR USER. Monitor will reset.
4) Power off monitor, unplug it from the power cord from 30+ seconds. Hook and power it back up. 2560x1440 should have all of the refresh rates again.
Last edited by Falkentyne on 12 May 2017, 08:22, edited 5 times in total.
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby terryskorski » 02 Dec 2015, 13:42

Thank you Falkentyne. Your posts here, linustechtips, overclock.net, overclockers, (everywhere!) convinced me to get the XL2720z on Cyber Monday (arrives early next week). It seems pretty straightforward here to follow these steps. Great work, and I'm looking forward to my first 144Hz monitor!
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby StrobeMaster » 08 Dec 2015, 13:34

So the settings in the factory menu can be changed (I am after the OD setting for the XL2730Z), but is there a way to actually save the settings so that they will survive power off/on?
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Falkentyne » 08 Dec 2015, 14:17

Hi Strobemaster.
I don't have the XL2730Z so I don't know how the factory menu works there. You may want to send a PM to Bishi (the same guy who did the Linux guide for our older monitors). He actually replied to my PM about some other firmware hack for black frame insertion on an AOC.

I still have my XL2720Z and I'm waiting for the Foris FS2735.

Someone in another thread somewhere and I think it was on this forum buried somewhere, said the XL2730Z OD service menu setting was the same as the OSD setting( I don't know if they actually tested it though!) , while in the (Gsync) XB270HU, it seemed to allow 1 extra setting. This is nothing like the old Asus Trace free + "OD Gain" setting which could be used to change overdrive in Lightboost mode, and the base value matched the original Tracefree value (if not in Lightboost mode), but OD gain changed either a gain or the strong/weak values, but didn't change the actual base tracefree value itself. I hope you get better results, though.

For example on VG248QE, setting Tracefree to 60 and then changing OD Gain from 09 (which matched Tracefree 60) to 0F would give far less overdrive intensity than Tracefree 100. Did your tests show differently on the Benq's limited values with respect to AMA off/High/Premium ?
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby StrobeMaster » 09 Dec 2015, 03:49

Hi Falkentyne,
So far I have run just a few tests with MBR=Off and AMA=High, and at least in this mode the OD setting allows for a very fine control over the strength of AMA (overdrive). This would already be very useful for me, but obviously only if I can figure out how to save the new setting. I'll ask Bishi. Thanks.

EDIT: I just see that I don't have enough posts to send Bishi a PM, so I just hope he reads this and replies in case he knows how to save the settings.
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Falkentyne » 09 Dec 2015, 06:28

I'll PM him this morning. In bed right now and the forums are lagging (this happens every night it seems)
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Bishi » 10 Dec 2015, 07:14

Sorry, i took a look but can't figure out how to have it save either :(
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Falkentyne » 08 Jan 2016, 09:09

Bumping this to the top.
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Gamepwn0r » 18 Jan 2016, 23:36

Thanks so much for the help! Your settings saved me hours BUT I have lost as far as Strobing! I don't understand what to do at all on the 2430T - I play CSGO mostly and there is just so much info, mainly about the utilities which I don't need with the 2430t so I want to know about setting up strobing.

I feel really stupid but with this new 2430T I don't understand...do I need to use 120hz to setup single strobe or whayever the best way for strobing is? I'd prefer 144hz but if everyone insists its better I will try it.

ALSO:
I did ICC profile and all menu settings, now what do I do for strobe settings to make it the best for CSGO and other games? All the strobe talk confuses me soo much especially because most info talks about 1350 and 1500 and needing to use 120hz or 60hz. I am sure it is simple to do but all the tech talk is making me overwhelmed.

Can anyone help me with 2430T strobing? Preferably for 144hz (or 120hz at least if need be, but if so why is 120hz better/necessary?).

I love this monitor and again thank you all for menu settings, strobing is just WAY over my head until I do more tech reading which I am willing to do but right now I just want to get the strobing setup ASAP and play and read about it later.

INPUT LAG: A cpl people said it feels better with blur reduction off but I am going to try blur reduction 1st because most ppl find it to be best to use it. Am I wrong here? Tiny bit less input lag but much better gaming right?

Anyways I am all set but the strobing.

THANKS SO MUCH!
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Re: Benq Service/Factory Menus, VT tweaks, XLX2720Z AMA Low

Postby Falkentyne » 19 Jan 2016, 01:42

If you intend to use blur reduction with CS:Go, use a HIGH strobe phase if you want the SAME input lag as blur reduction OFF. Some CS:Go ragers claimed that blur reduction adds input lag---no, it doesn't add ANY input lag WHATSOEVER *unless* you are using a LOW strobe phase. The problem is, Chief blur buster's windows utility has the descriptions inverted. The slider to the left should say "LATER strobe phase (more input lag=1 frame added) and to the right "Earlier strobe phase-less input lag" But this is only true if you are comparing Strobe phase=100 (zero input lag added, more crosstalk at the bottom of the screen) with strobe phase 000. Due to the maximum strobe phase being limited by the backlight shutoff point when using Vertical Total tweaks, the windows utility is limited to 047 strobe phase.

If you are *NOT* using VT tweaks at all, always set the strobe phase to 100 for FPS games (no input lag added for blur reduction at all) and set it to 000 for RPGs or games where input lag is not important, unless you want it at 010 or something for adjusting crosstalk a bit.

The numbers I gave have to do with the maximum strobe phase being limited by both the refresh rate and the presence of a VT tweak. Eventually you'll figure out how it works.

For example for call of duty black ops 3, I use 85hz refresh rate (custom), vertical total VT 1501, and a strobe phase of 064, which gives me a 007 strobe duty maximum range. Strobe phase 071 shuts off the backlight, and 065-070 is too dim.

I can't really help any more. Everything I'm saying is repeating what I already said previously.
Also depending on the firmware version of the XL2430T (NO ONE has dumped XL2430T firmwares yet.....why???), you may have to raise or lower the color vibrance by 1 point to get proper black level without extreme black crush (on later firmwares, CV=10 gives you proper blacks but raising it to 9 or 11 completely crushes blacks badly).

I can't help with ICC profiles. Don't use them and they usually don't work in games.

I never use blur reduction at 144 hz ! Can't use VT tweaks at higher than 128 hz (custom refresh rate) without getting an out of range error, and crosstalk covers HALF the screen at 144 hz! 120hz without VT tweaks is bad enough to handle.


If I were going to play CS:GO, I would use

120hz custom refresh rate
Vertical total VT 1500 + Horizontal total 2080 (over DVI); front porch 48, 3; sync width 32, 5
Vertical total VT 1499 + horizontal total 2001 (over displayport; this is to keep the pixel clock UNDER 360.00 MHz; these monitors will revert to 6 bit color over displayport (NOT over DVI) if the pixel clock exceeds 360.00 MHz over DP.

Strobe duty 007, strobe phase 043 (With 120hz VT tweak). Note: 050+ strobe phase shuts off the backlight! you still willi get the 1 frame lower input lag as the entire strobe phase gets "compressed" from 0-50 instead of 0-100. Mess with it yourself and you'll understand.

Strobe duty 007, strobe phase 100 (WITHOUT VT tweak).

Standard mode.
RGB 100, 100, 92
Everything else whatever.

This is really all I can help you with.
please use TOASTYX CRU to add VT tweaks.
monitor_butt (in the other thread right next to this at the moment) used the Nvidia control panel and he was getting headache and double images trying to add 120hz VT tweak through the Nvidia control panel. When he switched to toastyx CRU, his double images and headaches went away. Nvidia CP causes strange things to happen sometimes. You can even trick the video card to running at 180 hz refresh rate when the MONITOR ITSELF is at 144hz, causing bizarre stuff to happen (please don't try it).
Falkentyne
 
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