PC monitor image flashes once on startup, then stays black.
My PC monitor image flashes once on startup, then stays black. If I wait for around 15 minutes and click on the input/exit button on the monitor. Usually it will work again without an issue. Is this indicate the monitor power adaptor/power supply is failing? My running dual monitor, the 1st monitor, no issue at all. Been using this monitor for 10 years+. It seems like the monitor require "charge up" time in order to boot up without an issue.
The model is LG 23EA53
This is the original adapter, no brick, just the UK 3 pin power adapter. 19v 1.3A. I'm able to source a replacement unit locally at around 7USD.