POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

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Do you use motion blur reduction? (backlight strobing/BFI)

Yes, always
19
40%
Sometimes
9
19%
No, never
18
38%
I have never tried it before
2
4%
 
Total votes: 48

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Discorz
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POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by Discorz » 08 Aug 2021, 07:40

What percentage of gamers use motion blur reduction? DyAc, ELMB, ULMB, PureXP, VRB, MBR, Aim Stabilizer... This also includes vrr strobing!

The more people vote the more realistic result we get.

Image Image
Non-strobed and strobed backlight on LCD

EDIT:
- added new 'never tried' option (vote reset)
results before editing:
Yes, always = 12 votes
Sometimes = 12 votes
No, never = 20 votes
44 votes total

This post will be edited from time to time.
Last edited by Discorz on 27 Dec 2021, 04:33, edited 4 times in total.
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BTRY B 529th FA BN
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Re: POLL - Do you use backlight strobing/BFI?

Post by BTRY B 529th FA BN » 08 Aug 2021, 08:59

For me G-Sync Off/Fixed Refresh + V-Sync Off has the lowest input lag and that's my aim/goal. I've tried it on my 360Hz and the 240Hz maximum with ULMB is terribly slow. And according to RTINGS the input lag with ULMB is 5.5ms vs 1.6ms at Native. I might try the 390Hz Acer AOPEN with ULMB to see how it is but for now it's Fixed Refresh & V-Sync Off
Last edited by BTRY B 529th FA BN on 08 Aug 2021, 14:57, edited 1 time in total.
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Re: POLL - Do you use backlight strobing/BFI?

Post by Discorz » 08 Aug 2021, 14:33

So all off. I did not know PG259QN had such input lag difference with ULMB.
On my VG279QM it felt the same or maybe even slightly snappier with ELMB.
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POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by BTRY B 529th FA BN » 08 Aug 2021, 14:59

According to RTINGS the VG279QM input lag is the same: both Native & ULMB/BFI @ 1.7ms, while VRR is 1.8ms. It's a fantastic monitor. I should of returned the one I had for a new one and used it for my daily/main rig.
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Re: POLL - Do you use backlight strobing/BFI?

Post by Chief Blur Buster » 08 Aug 2021, 15:05

Discorz wrote:
08 Aug 2021, 14:33
So all off. I did not know PG259QN had such input lag difference with ULMB.
On my VG279QM it felt the same or maybe even slightly snappier with ELMB.
P.S. Quick Frame Transport is a superior way to lower strobe lag. NVIDIA ULMB doesn't use Quick Frame Transport (QFT).
See New Quick Frame Transport HOWTO.
BTRY B 529th FA BN wrote:
08 Aug 2021, 14:59
According to RTINGS the VG279QM input lag is the same: both Native & ULMB/BFI @ 1.7ms, while VRR is 1.8ms.
VG279QM doesn't use NVIDIA ULMB. It uses ELMB-SYNC. ELMB-SYNC already takes advantage of QFT automatically (as does all VRR technologies).
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Re: POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by Discorz » 08 Aug 2021, 15:17

I also did not know QFT can affect it that much. Then it would be nice to see manufacturers state such thing.
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Re: POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by Chief Blur Buster » 08 Aug 2021, 15:22

Discorz wrote:
08 Aug 2021, 15:17
I also did not know QFT can affect it that much. Then it would be nice to see manufacturers state such thing.
VG279QM is proof of QFT doing wonders to strobe lag! (All VRR is defacto QFT).
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Re: POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by BTRY B 529th FA BN » 08 Aug 2021, 15:25

Is that a different implementation? Why does RTINGS use BFI? Is that some sort of generic term for it?
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Re: POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by Discorz » 08 Aug 2021, 15:39

Chief Blur Buster wrote:
08 Aug 2021, 15:22
Amazing stuff!

What is the largest possible VT panels can achieve these days?
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Re: POLL - Do you use display motion blur reduction? (backlight strobing/BFI)

Post by Chief Blur Buster » 08 Aug 2021, 17:47

BTRY B 529th FA BN wrote:
08 Aug 2021, 15:25
Is that a different implementation? Why does RTINGS use BFI? Is that some sort of generic term for it?
Yes, "BFI" (Black Frame Insertion) is a generic term. Although this could denote directly black refresh cycles, it is also used to describe strobing as the backlight equivalent of inserting black frames.
Discorz wrote:
08 Aug 2021, 15:39
Chief Blur Buster wrote:
08 Aug 2021, 15:22
Amazing stuff!

What is the largest possible VT panels can achieve these days?
It's a function of a panel's min/max Hz. See the FAQ. So get the max Hz available today on a 1080 panel (e.g. Acer 390Hz) and run it at min Hz (e.g. 50Hz or 60Hz). So you can increase VT by (390/60) times the VT of 60 Hz. Future 480 Hz panels doing 60 Hz may be able to support a Vertical Total of 9000. There's no upper limit except the LCD's panel to fade during excessively long refresh cycles, but if the panel still supports native 60 Hz despite a high Hz, then it can still continue to scale.

On the other hand, if you're looking for strobing you will have to adapt if minimum strobe Hz is high (e.g. 100 Hz).

Don't forget you need retro-friendly strobe support -- a mandatory feature of Blur Busters Approved 2.0 such as www.blurbusters.com/xg2431
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