Few weeks ago I noticed that before the monitor goes into sleep mode after inactivity, it makes something like a blink. When I say blink, I mean, in less than a second it turns off, turns on and turns off again.
I can't say that this started happening after some software change or anything... actually there's a slight chance that this started happening after Windows 10 1903 update installed.
These are my specs
Processor & Cooler: Ryzen 2600X 3.6Ghz
Motherboard: ASROCK AM4 X470 Master SLI
RAM: G.SKILL RipjawsV 2x8GB @3000MHz
VGA: MSI Radeon RX580 ARMOR 8GB
PSU: EVGA SuperNOVA G3 550W 80+
Storage: Samsung 970 NVMe 500GB + 4TB Wester Digital Blue
Monitor: DELL 23'' S2340L
I tried going back to the official driver 19.5.2 driver but same problem.
I also tried DDU, it didn't help.
There's one thing that helped, and that's deleting the drivers and letting Windows update install them.
Unfortunately, these drivers Windows update installs are really old drivers, 17.1.1. The problem doesn't appear with these drivers.
I tried changing stuff in Radeon settings but nothing seems to help.