> Hmm. Can we simply use blinking trigger to do that? To some extent... If you just want to have 50% brightness, set timeon=1, timeoff=1 and you are done. But, accurately seting the brightness to weird numbers is harder. E.g., To get 37% brightness your only chance is to set timeon=37, timeoff=63 (Or multiples of it). The larger delay causes very visible flickering, which sucks. This trigger uses error propagation to continously adjusts the delay, getting a higher blink frequency and accurate average brightness. E.g., For 37% it will alternate between 33% (timeon=1,timeoff=2) and 50% (timeon=1,timeoff=1) Unfortunately, it doesn't really help when the brightness is near 0% or near 100%. E.g., for 1% brightness, this trigger it is equivalent to timeon=1,timeoff=99 -- Flickering is very visible.
