Problems? See this thread at archive.org.
Ok, we know that
15-inch model has "AU Optronics AUO51ED B156HTN" 120Hz-panel, and
17-inch model has "AU Optronics AUO1096 B173QTN01.0" 120Hz-panel.
The question is: do they use PWM (backlight flickering) for dimming?
If PWM frequency is low it may cause eyestrain and headaches. There is a simple test to determine if your panel uses low-frequency PWM: with this webpage open set backlight level to 50%, take your phone and try to capture slo-mo video of the screen.
If you can see screen flickering on the video (or stripes like on the CRT-monitors) then it is safe to conclude the panel uses PWM. If not (the screen on the video doesn't differ from what you see with your eyes), then it may be PWM-free, or PWM frequency is too high.
P.S. Interesting thing: Aorus x7 v6 and Aorus x7 DT v6 both use the same 120Hz-panel. And while DT-version uses PWM, the other one doesn't.
120Hz 15" FHD and 120Hz 17" QHD: PWM for dimming?
Discussion in '2015+ Alienware 13 / 15 / 17' started by trali, Dec 5, 2016.
