Yesterday, my pc monitor did say that it does not have any signal, even though my pc was pluged-in as usual. I even tried a different cable and a different source (laptop), but still no picture, not even the menu from the monitor showed up anymore. The pc and laptop were fine, they both worked with the tv as alternative display.
However, a day later, the monitor works again as if nothing happened. Is this only temporary (like with hard disk fails, they slowly build up) and I should consider buying a new monitor (it is 5+ years old and was used daily for at least 12h) or did I miss something and the monitor is just fine?
Is there a way to test monitor health as it is possible with hard drives with CrystalDiskInfo for example?