The problem with this monitor is that it is good for a period and then blanks out. Switching it off and on again cures the problem for another period. It has been a while since I replaced it, but the period I think is about 10 minutes. Is is a VGA monitor.
from here you can WhatsApp chat with their experts.
https://www.lg.com/uk/support/product-support/cs-L225WS-SF.AEK/#troubleshoot-tab
and have a look at these:
https://www.manualslib.com/manual/828260/Lg-Flatron-L222ws.html?page=8#manual Looks good.
