I purchased a 4K monitor (LG 24UD58 24" 4K IPS LED) a few months ago, and it’s started exhibiting a few really weird signs today…really weird stuff.
It has two HDMI ports (which seem to be fine), and a single DisplayPort. Occasionally, the screen will start displaying complete white with a few honeycomb/circle shapes, and the OSD is also hidden by this; sometimes the screen just goes white and then fades to black, requiring the monitor to be turned off and back on again. However, if I shift + tab + arrow the window off of the 4K monitor onto my secondary monitor, the issue stops (but not always). Then if I move it back after a few seconds, it’ll be fine.
I’ve tried changing the cable and It shouldn’t be the GPU since my secondary monitor (also running via DisplayPort) is absolutely fine (though it’s only 1080P, but at 144Hz).
Does anyone have any ideas? It’s occurring every minute or so.