Screen blanking momentarily

I seem to have an issue with 17.x that I wasn't getting on 16.x in that the screen will occasionally blank for a fraction of a second every now and then. Doesn't seem to be anything that causes it to happen, I can be working on stuff or the system can just be idle.

I've tried changing the gfx driver to Mesa, changing the refresh rates etc, but reading up it looks like it may be to do with the Linux Kernel?

System is an old i5 and a 6650XT card connected with DP

Appreciate any solutions, as it's quite off-putting

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Do you get the same if you login using X11 instead of Wayland?
(That setting is via gearwheel/cog on login screen)

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Doesn't appear to be doing it under X11, no.

I've had this same issue in Zorin OS Pro 16.x and 17.x, but I will say it seems to happen less often in 17. I can't figure out what is causing this as the screen seems to momentarily blank no matter what I'm doing. Seems to happen every few days and lasts only about a second. I don't like it, but I've learned to live with it.

It happens on mine maybe 3-5 times an hour, but doesn’t seem to be related to doing anything in particular either. If it was happening with 16.x then I didn’t notice.

Wonder if it has anything to do with screen blanking time?