ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, Turbo240, ToastyX Strobelight, etc.
Cellx
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Joined: 24 Feb 2020, 07:56

Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Post by Cellx » 12 May 2021, 10:25

While it's great that workarounds like these still work, that's a 670€ monitor, just to play 60fps games like we used to on CRT or my 10 year old professional NEC VA monitor that's dying (and the resolution is still lower! And I'm sure the asus is less bright!)
The worst part is that I was about to pull the trigger for an LGCX just for it's 60hz to 120hz bfi mode but I found out it doesn't support odd BFI refresh rates like my other monitors can (my MSI ultrawide can strobe as low as a native 75hz to 144hz and any refreshes in between, but they stupidly force the overdrive to the max refresh rate while strobing, creating awful reverse ghosting) so I'm not too sure anymore, that's 1000+€ for some too big TV that can only strobe at 2 rates and only outside of PC mode.
Frustrating.

nuninho1980
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Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Post by nuninho1980 » 27 Nov 2021, 05:49

But... we may get no strobe on console or TV box because NV ULMB enabled does NOT work HDMI port, ok?
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Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Post by Chief Blur Buster » 27 Nov 2021, 13:44

nuninho1980 wrote:
27 Nov 2021, 05:49
But... we may get no strobe on console or TV box because NV ULMB enabled does NOT work HDMI port, ok?
It has nothing to do with HDMI vs DP. I got ULMB working over HDMI, but only from an NVIDIA GPU to an NVIDIA ULMB monitor.

ULMB also uses a form of DRM (vendor lock in) so it doesn't work with AMD cards or non-NVIDIA video sources. NVIDIA drivers needs to execute a handshake protocol with the monitor just to convince the monitor to enable ULMB.
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nuninho1980
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Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Post by nuninho1980 » 27 Nov 2021, 18:07

Chief Blur Buster wrote:
27 Nov 2021, 13:44
It has nothing to do with HDMI vs DP. I got ULMB working over HDMI, but only from an NVIDIA GPU to an NVIDIA ULMB monitor.

ULMB also uses a form of DRM (vendor lock in) so it doesn't work with AMD cards or non-NVIDIA video sources. NVIDIA drivers needs to execute a handshake protocol with the monitor just to convince the monitor to enable ULMB.
Ok. I'm sorry. Manual ASUS (digital) says "NVIDIA ULMB (Ultra Low Motion Blur)/ULMB Pulse Width (only for
DisplayPort (DP) input)".

But I'm confused:
-- Both NVIDIA ULMB + ULMB Pulse Width -> only for DP input
or
-- NVIDIA ULMB -> for both HDMI and DP input and ULMB Pulse Width -> only for DP input
I can't undersand this. ;)
CPU: [email protected]
RAM: 2x16GB DDR4@3600MHz
MB: MSI PRO Z690-A DDR4
GPU: Zotac RTX 4090 non-OC new! <3 :D
Opt. disc: LG BD-RE writer BH16NS40
HDD: SATA 1TB
SSDs: OCZ RD400 0.5TB+Crucial MX500 2TB
PSU: AEROCOOL 1kW 80+ Gold
Disly: CRT 21" Sony E530 :D

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Re: ASUS PG259QN hack for single-strobe ULMB 50 Hz and ULMB 60 Hz

Post by Chief Blur Buster » 28 Nov 2021, 01:39

Actually, the majority of NVIDIA G-SYNC chipped displays need DisplayPort, and so, that's actually correct, at least for that monitor model.
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