Does using an HDMI splitter introduce input lag?
I have a Smash Bros Melee setup with a low-latency display and a low-latency Wii->HDMI converter. I'd like to split the signal across two displays (so everyone can see the screen during 4-player matches), ideally with zero added latency (but up to 2ms or so of extra latency would be OK).
With analog video tech you can just physically split the signal, but I'm not sure this applies to HDMI; most splitters are active devices. Do these splitters introduce any lag (e.g. by capturing, buffering, and retransmitting packets)?
Best Answer
I can't say definitively for all HDMI splitters because they can be implemented in different ways, but the ones that I have used all produce no input lag, even though they require A/C power.
The bigger concern for you would actually be the composite -> HDMI upconverter, because the processing that needs to be done for that could potentially produce lag. You say that it is low-latency though, so you should be good.
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Does HDMI splitter affect input lag?
So long as you get a good, active HDMI switch (which tend to be more expensive) there should not be any noticeable lag. Active switches, as opposed to passive, run on an external power supply through an AC adapter.Does HDMI switcher cause lag?
While some HDMI 1.4 splitters can achieve 4K resolutions, they only work at a 30Hz refresh rate. Other HDMI 1.4 splitters are marketed as 4K at 60Hz, but their color data is reduced to a lower 4:2:0 chroma subsampling.Does HDMI splitter reduce refresh rate?
Luckily, there are methods\u2014some rather simple\u2014to eliminate much of this input lag.Do HDMI Splitters add LAG to your games ???
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