Tyvm for this it helps a lot. Is there a blur reduction for xg2401? Purexp? I can't seem to find anything ( I guess it doesn't matter since I have an xn252q coming tomorrow )Chief Blur Buster wrote: ↑27 Mar 2020, 20:19All strobe backlights, are automatically a PWM mode.HyperSlayer72 wrote: ↑27 Mar 2020, 20:00I was also asking about pwm/dc when not using blur reduction backlights. Just normal display modes. I remember reading a thread that said pwm monitors natively have less blur than flicker free panels. It advised to stick with high hz pwm even if you planned on not using strobbing. Based on these beliefs idea it begs the question, why did the industry stop using pwm all together for high hz monitors. I understand making flicker free monitors for those with eyestrain concerns. But for many other buyers myself included i'd gladly take clearer motion over a "no eyestrain" feature.
(A good kind of PWM)
PWM-free monitors still re-enable (a better kind of) PWM for motion blur reduction.
BFI is PWM.
Strobe is PWM.
ULMB is PWM.
LightBoost is PWM.
Aim Stabilizer is PWM
PureXP+ is PWM
DyAc is PWM
PWM stands for Pulse Width Modulation. Flashing a backlight on and off. A strobe backlight is also flashing. Except it's properly synchronized to the refresh rate.
It's only PWM-free in non-strobed mode. There is less motion blur with PWM because PWM dimming provides "accidental blur reduction" benefits. Unfortunately, other people get more pain from PWM dimming than from blur reduction benefits.
Open up a monitor menu on a GSYNC monitor that includes ULMB, and you'll see "ULMB Pulse Width", so you can adjust the size of the pulse to improve your MPRT. LightBoost 10% vs 100% is a Pulse Width Adjustment! So if you were a user of LightBoost 10%, you simply adjusted your LightBoost PWM setting.
These settings adjust the size of the pulse width in PWM:
The industry simply moved to PWM-free for non-strobed modes, and healthy one-pulse-per-refresh PWM for strobed modes.
- NVIDIA "LIghtBoost" % setting
- NVIDIA "ULMB Pulse Width" setting
- BenQ "Strobe Duty" setting
- ViewSonic "PureXP+ Levels" (Light|Normal|Extreme|Ultra)
- Acer "VRB" Normal/Extreme
(They just don't market strobe as PWM. But strobe is same thing as PWM).
The industry never stopped using PWM
Because PWM is still mandatory for motion blur reduction -- at least until we can do strobeless blur reduction via ultrahigh refresh rates instead. They just switched from nasty multi-strobe PWM to good single-strobe PWM.
Strobing is PWM. PWM is stobing. It's the same thing, artifacts-wise. Whether be PWM dimming (120fps at 360Hz PWM dimming) or multi-strobing (e.g. 60fps at 120Hz LightBoost). Except blur reduction strobing is simply strobing synchronized to refresh rate. Or PWM synchronized to refresh rate. It's also why you want fps=Hz to sync your strobe rate to the frame rate, to maximize motion pleasure and minimize eyestrain from artifacts (such as duplicate images).
- PWM dimming uses top rows (360Hz or 480Hz PWM on a 120Hz monitor produces that)
- PWM blur reduction uses bottom row (beautiful single pulse PWM during fps=Hz).
Marketing simply changed.
Good PWM is now labelled "motion blur reduction" by it various brand names (LightBoost, ULMB, DyAc, ELMB, PureXP, etc). So you see, a PWM-free monitor with motion blur reduction mode, STILL has PWM. Just PWM made optional.
Also, please re-read my previous reply.
It does have an option to reduce blur with a mode in the OSD called 'low input lag' or 'Response time' setting I forget which one - if I have it set to advanced it's kinda blurry in games (not using any vrr tho - uncapped fps until new 240hz arrives) - if I put it to ultra fast I get ghosting, but it certainly makes character models more prominent. Does this affect input lag negatively or positively in any way? Also with overdrive I should probably be using vrr for less ghosting?
Ah shit I just asked 100 dumb questions because I'm very new to all this - don't worry you don't have to answer as I say new monitor tomorrow..