Viewsonic XG270 with 'PureXP" MBR [pre-tuned by Blur Busters!]

[Chief Blur Buster]

You don't want to use PureXP at 240hz, ideal is 120hz and you want to use PureXP for MOBA games like LoL\Dota2.

While I recommend PureXP for 120Hz for best tradeoffs...

There are still benefits to PureXP at 224Hz and 240Hz, it's a matter of user preference. 224Hz looks much better than 240Hz, while 120Hz looks better than 240Hz for PureXP strobe crosstalk. This is useful if you prefer to use PureXP as an aim stabilizer (like DyAc) with uncapped CS:GO 300fps VSYNC OFF. In this situation, it can be more favourable to use PureXP at 224Hz or 240Hz, to reduce strobe lag.

Now, 120Hz PureXP+ has far less strobe crosstalk, can look like perfect CRT clarity during scrolling / panning / turning when you have framerate=Hz. This is better if your goal is panning-motion-clarity benefits (ala Sony GDM-FW900 CRT-like motion clarity) more than quicker aim-stabilizing benefits (ala DyAc). And framerate=Hz is easier at 120Hz than 240Hz, given the amplified double-images of strobed 120fps@240Hz (like CRT 30fps@60Hz).

Strobe crosstalk is simply a law of physics issue of LCD GtG pixel response -- the refresh rate headroom needed to hide LCD GtG in total darkness (unseen by eyes) between refresh cycles in order to reduce strobe crosstalk -- NVIDIA strobe-locks the ULMB refresh rate to prevent quality complaints -- while ViewSonic gives user the choice of crosstalk-versus-refresh tradeoff.

Full control:
https://ibb.co/9YZYXCs

So the only thing I am changing is the color temperature..The full control doesn't add this ghosting stuff in OD Ultra Fast. Feels like it shouldn't do such drastic thing also in fastest, can you check this with viewsonic?

1. Did you a firmware upgrade?
2. Did you do a "Memory Recall" after firmware upgrade?

I'm trying to reproduce this specific problem, you may have to contact me at mark [at] blurbusters.com with photos of all your menu screens, so I can duplicate all your picture settings (one by one) since this might be picture-settings specific. Then I can properly report this bug to ViewSonic for them to address in future firmwares.

[Chief Blur Buster]

I don't know if i have an eyesight problem or not but i really can't tell the practical difference between all these modes. I've been playing for a week now with this monitor COD Warzone and CS GO and with PureXP on or off all i see is the difference in brightness bertween modes.

See HOWTO: Using ULMB Beautifully or Competitively

To maximize PureXP benefits;
1. Use framerate=Hz, so you might need to use VSYNC ON + NULL, or frame rate cap, or other framerate=Hz tricks.
2. Configure mouse to 1600dpi or better (at 1/4 sensitivity relative to 400dpi). Strobed mouseturns don't benefit from 400dpi mouse
3. Works best in crosshairsless games that force you to track eyes

That's why PureXP is easier to see in MOBA/RTS than FPS games, because TestUFO-style scrolling happens more often in MOBA/RTS.

DPI is more important in FPS games though. Stationary-gaze at crosshairs will not reveal PureXP benefits, especially with a default 400dpi mouse. The low-DPI of a mouse is often a strobing weak link that sometimes completely kills strobing benefits during FPS mouseturns for a low-dpi-high-sensitivity situation (granular mouse slowturns). Strobing massively amplifies the mouse DPI limitation, since strobing massively amplifies microstutter weak links during eye-tracking situations.

[niros]

When you guys say purexp at 224hz
Does it matter which purexp mode i choose? Because i can only use the first maybe second mode in terms of brightness - if i do use those modes with 224hz and not the top purexp- is it even worth using it at all for fps games?

Also - let me ask something else!
In apex legends i keep reading that you should cap your fps to 180 because a number bigger than that(or uncapped) and the game engine will do some crazy shit..
so lets say i do fap my fps at 180 - how good purexp would be then? Should i still use 224hz or try 180hz instead?

Thanks

[Chief Blur Buster]

When you guys say purexp at 224hz
Does it matter which purexp mode i choose?

It's a user preference. It's a motion blur versus brightness tradeoff.
-- Dimmer has slightly clearer motion
-- Brighter has slightly blurrier motion

In apex legends i keep reading that you should cap your fps to 180 because a number bigger than that(or uncapped) and the game engine will do some crazy shit..
so lets say i do fap my fps at 180 - how good purexp would be then? Should i still use 224hz or try 180hz instead?

Yes, 180Hz PureXP is better for a 180Hz framerate cap.

Slightly less strobe crosstalk, AND also the MOBA panning motion will be TestUFO-smooth (especially with mouse configured correctly)

[donnie]

Full control:
https://ibb.co/9YZYXCs

So the only thing I am changing is the color temperature..The full control doesn't add this ghosting stuff in OD Ultra Fast. Feels like it shouldn't do such drastic thing also in fastest, can you check this with viewsonic?

1. Did you a firmware upgrade?
2. Did you do a "Memory Recall" after firmware upgrade?

I'm trying to reproduce this specific problem, you may have to contact me at mark [at] blurbusters.com with photos of all your menu screens, so I can duplicate all your picture settings (one by one) since this might be picture-settings specific. Then I can properly report this bug to ViewSonic for them to address in future firmwares.

Hey, it's really easy to reproduce this, and at least 2-3 other forum members have the same issue. Just setup OD Fastest and then enable Full color control. Now run the test https://www.testufo.com/crosstalk , you can clearly see that it messes up the picture. Now try changing to native color it will work just fine.

Alternatively you can move OD to ultra fast and it will fix the issue. So its just OD Fastest + Full color control.

I have the latest 520 firmware and I did the memory recall and it didn't fix the issue. There is no other specific picture settings.

[TheMadMan697]

I found something interesting about this issue with Full Color Control. It does not happen for me if I use the custom resolution (224Hz) that I created in CRU but if I select any other refresh rate in NVIDIA control panel it goes all wonky unless I lower the OD.

How do you check the firmware version? I was looking for this when I got my monitor a few weeks ago. It came with the different Options for PureXP that were added but there was still a firmware update and I don't know what actually changed in the firmware update that I installed. (My monitor date of manufacture was 12-02-2020)

[niros]

When you guys say purexp at 224hz
Does it matter which purexp mode i choose?

It's a user preference. It's a motion blur versus brightness tradeoff.
-- Dimmer has slightly clearer motion
-- Brighter has slightly blurrier motion

In apex legends i keep reading that you should cap your fps to 180 because a number bigger than that(or uncapped) and the game engine will do some crazy shit..
so lets say i do fap my fps at 180 - how good purexp would be then? Should i still use 224hz or try 180hz instead?

Yes, 180Hz PureXP is better for a 180Hz framerate cap.

Slightly less strobe crosstalk, AND also the MOBA panning motion will be TestUFO-smooth (especially with mouse configured correctly)

Let me ask few more questions to understand things better

1. When you say 180hz work better with purexp (compared to 224/240), does it mean its better compared to lets say uncapped fps purexp off and od fastest? (Talking only for fps gaming)

2.if 400 dpi is bad for purexp and i cant use 1600dpi(its just too fast in menus/desktops)-should i even bother with with purexp?

3.now lets say i did went with 180hz and purexp on -what about nvidia settings? If i have ingame fps capper - do i need vsync on or off? If i set to either then what about null? Should it be On or Ultra?

4.how can i check if i have any frimware updates?

5. I still dont understand whats the overclock setting for? should it be on or off?


Thanks

[donnie]

If you want to find the firmware version refer to this topic:

viewtopic.php?f=2&t=6850&p=51640#p51640

I found something interesting about this issue with Full Color Control. It does not happen for me if I use the custom resolution (224Hz) that I created in CRU but if I select any other refresh rate in NVIDIA control panel it goes all wonky unless I lower the OD.

How do you check the firmware version? I was looking for this when I got my monitor a few weeks ago. It came with the different Options for PureXP that were added but there was still a firmware update and I don't know what actually changed in the firmware update that I installed. (My monitor date of manufacture was 12-02-2020)

I made the custom resolution in CRU with 224hz and the issue still happens to me even if I use that one. Can you post your CRU settings for that custom resolution? Maybe a screenshot where you created it and how it looks in NVCP

[Chief Blur Buster]

I found something interesting about this issue with Full Color Control. It does not happen for me if I use the custom resolution (224Hz) that I created in CRU but if I select any other refresh rate in NVIDIA control panel it goes all wonky unless I lower the OD.

Thank you for this new behaviour observation. Will do further testing before sending off a careful report to ViewSonic.

[Chief Blur Buster]

Let me ask few more questions to understand things better

1. When you say 180hz work better with purexp (compared to 224/240), does it mean its better compared to lets say uncapped fps purexp off and od fastest? (Talking only for fps gaming)

Context is important.
Do you define "better" as lower input lag?
Do you define "better" as clearer motion with less strobe crosstalk?

Just as all the PureXP modes at all refresh rates are clearer motion than even 240Hz non-strobed, there are pros and cons.
- 120Hz PureXP+ has less display motion blur than any non-PureXP refresh rate (even 240Hz)
- 120Hz PureXP+ is more laggy than 240Hz PureXP+ and 240Hz non-PureXP+

Sometimes you have to choose one pro-versus-con. This applies to the majority of monitors on the market, regarding strobe lag (which is only a few milliseconds). The important thing is that the user has a choice.

if 400 dpi is bad for purexp and i cant use 1600dpi(its just too fast in menus/desktops)-should i even bother with with purexp?

It's a user choice -- you may still like it.
PureXP still has benefits, such as for keyboard movement and low mouse sensitivity (400dpi low sensitivity).

The problem is that some FPS players, 400dpi means if you program sensitivity too high for the dpi -- then to go 2000 pixels per physical inch, the movements steps 5 pixels at a time. Also, if you move mouse slowly at 1/4th inch in one second, 400dpi only gives 100 mouse positions in one second (which leads to choppy slowturns or choppy slowpans that feels 100 frames per second feel -- slowturns feels more jittery/stuttery). Since motion blur reduction amplifies visibility of microstutter/jitteriness -- because motion blur is no longer hiding those tiny jitteriness -- that's when mouse DPI limitations begin to be massively amplified. It might not bother you, but it just makes PureXP less efficient in eliminating mouseturn motion blur.

There are multiple techniques to resolve the "Low DPI degrades strobing benefits" problem:
(A) Mouse profiles that use low DPI at desktop, but automatically raise DPI when a game runs. Your vendor's fancy mouse software may already do this (Logitech, Razer, etc).
(B) Fourth or fifth button switches between two DPIs, so you can navigate in-game menus better.
(C) Live with it; strobing will have some benefits (moreso for keyboard movements and low-sensitivity)

There is also the "spend more money" option, to buy a mouse that lets you do both (A) and (B), to make the high-DPI life bearable.

what about nvidia settings? If i have ingame fps capper - do i need vsync on or off? If i set to either then what about null? Should it be On or Ultra?

For this, it will be easier to post a new thread about capping and NULL -- it's a large topic that uses tips that generally works on all monitors -- the differential latency effects (increases and decreases) are generally identical on all gaming monitors of the same Hz. Try the Input Latency forum area.

Capped and uncapped has different pros/cons. Capping has advantages for all sync technologes for different reasons
- Deciding whether or not to cap during VSYNC ON (has many pros/cons)
- Deciding whether or not to cap during VSYNC OFF (has many pros/cons)
- Deciding whether or not to cap during VRR (usually always advantageous unless you have a reason to do a VRR+VSYNC OFF combo)
These are separate generic (non XG270 specific) subtopics that would be easiest to answer in a separate thread.

4.how can i check if i have any frimware updates?

Install ViewSonic Elite Display Controller software, it will check if firmware is available.

5. I still dont understand whats the overclock setting for? should it be on or off?

There is very little overclock margin but I would leave it enabled.