ASUS OLED PG27AQDP and inconsistent lag in ELMB mode

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, ToastyX, black frame insertion (BFI), and now framerate-based motion blur reduction (framegen / LSS / etc).
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calleking
Posts: 2
Joined: 10 Jan 2021, 07:41

Re: ASUS OLED PG27AQDP and inconsistent lag in ELMB mode

Post by calleking » 16 May 2025, 01:43

Still no fix for the BFI input lag on this monitor?
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skaBABBLZ
Posts: 1
Joined: 29 Sep 2025, 13:32

Re: ASUS OLED PG27AQDP and inconsistent lag in ELMB mode

Post by skaBABBLZ » 29 Sep 2025, 13:34

Can confirm, Still issues with BFI lag
Even on MCM104 firmware. So disappointing, trying to contact ASUS and see if this will be addressed.
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StrobeMaster
Posts: 60
Joined: 25 Apr 2014, 01:31

Re: ASUS OLED PG27AQDP and inconsistent lag in ELMB mode

Post by StrobeMaster » 21 Dec 2025, 10:20

I just measured the ASUS PG27UCDM (4K, 240Hz, QD-OLED, firmware MCM105). ELMB is only available for 120Hz input refresh rate, and input lag is 10ms or 14ms (at the screen center). Whether it is 10ms or 14ms depends on the moon phase when activating ELMB, meaning it probably depends on exactly when during a refresh cycle ELMB happens to be activated. But, at last, it is stable within an ELMB session.
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