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DMX Mode "effect" laggy when controlling brightness #5298
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That sounds like you have a transition time set of greater than 0
That sounds like you have a transition time set of greater than 0
No, its set to 0. The Official Documentation (https://kno.wled.ge/interfaces/e1.31-dmx/#effect) states that the "effect" mode is "Not a realtime mode & only support 1 universe.". I think "not a realtime mode" means that the Inputs from DMX are not processed in realime. Because of this, changing the Brightness via dmx is not smooth.
So realtime is where WLED flips from being an effect generator and output to just a "pixel pusher" where realtime protocols like ArtNet, DMX, DDP etc are being used to send what the value of each pixel should be right now
If transition time is set to 0, but you are still seeing a transition time between effects or slow fade when changing brightness, that's a bug
- changed the title
[-]Make the DMX Mode "effect" a realtime mode[/-][+]DMX Mode "effect" laggy when controlling brightness[/+]on Feb 20, 2026 I think I did also see this laggy behaviour when using a WLED DMX sending device with wired DMX output to an WLED DMX receiving device. I used the
Effect SegmentDMX mode on the receiver. While any of the 15 DMX channels were set to 0 (so running on solid effect) except the RGB channels (7,8,9).Although I did not transition between effects. The laggy behaviour shows when running an fading effect like
sinelonwhich might have some intrinsic brightness fading.If there is some insight into this, I'd be happy to get some details about it.
I just did a lot of testing in Effect Segment mode with wired DMX and it's perfectly responsive for me, as mentioned you need to load a preset with transitions set to 0
As realtime as it gets really...
VID20260308000120.mp4
Reacted by Will TatamStrip FPS depends on the effect you choose! For solid color (3-4 FPS), just use other effect type: #3239 (comment)
Strip FPS depends on the effect you choose! For solid color (3-4 FPS)
Actually that's outdated - in WLED v16.0.0 all effects try to achieve the "target FPS" that you set in LED & Hardware settings. The "Solid" effect is not an exception any more.
A well-known issue (that's not so easy to solve): wired DMX has performance issues, especially for more than a handful of LEDs. We have a PR in the pipeline to improve performance #5522
That is incorrect @softhack007 , you are confusing DMX input with DMX Output
I am Using WLED with Wired DMX input to control LED Strips in a Club Environment.
I'm currently using the "Preset" Mode to trigger different Effects. I can not use the "effect" Mode, as its not a realtime mode and is therefore really laggy when controlling brightness or doing a blackout.
It would be really nice if the "effect" mode was as responsive as the "preset" mode.