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I've been using the LG 43UD79 for over a month now and can confirm that it definitely uses PWM by the UFO test (https://www.testufo.com/#test=blurtrail&foreground=FFFFFF&background=000000&thickness=2&height=480&ppf=16&separation=1000) - when brightness is set to 100, there are single moving...

You don't need a high speed camera to test if a monitor uses PWM. Instead, all you need to do is have it display an all white background, then decrease the brightness while waving your hand over the screen. If you see "trails" of your hand waving, then the monitor uses PWM dimming. The "trails"...

As I mentioned in my earlier post about this monitor, I've also experienced it going black and restoring signal after a second a few times a day. I have it connected via DisplayPort to a Mac, so considering that the above posts say this happens with PCs as well, it seems to be an issue with the...

I can confirm that at least for my particular monitor (LG 43UD79-B), it does use PWM dimming (which contradicts it being advertised as Flicker Safe) For example, when using this test (https://www.testufo.com/#test=blurtrail), there are single moving vertical lines when brightness is set to 100...

I've had this monitor for a couple weeks now and noticed some issues as well: - PWM flicker (even though the monitor is advertised as being Flicker Safe) - for example, if you look at a white background and wave your hand over it, you can see trails of your hand. Setting brightness to 100...