Flying dusk to dark, as ambient darkened and screen began to dim, back light began to flicker. The dimmer the screen became the more obvious the flicker, both views (EFIS and map) to a lesser extent on map I think because it is brighter. Weird is that the rate of flicker could be changed with engine RPM. Steady 14.5 volts and about 15 amps. Finger on light sensor had no additional effect. With bright daylight and bright screen no problem. I did not try manual dimming sorry to say. What might I try to help correct? Running 3.1 firmware. RV-8A
Jack L
Jack L