This sounds like a driver issue with your particular monitor. I've run into this before and often times its the Windows self installed driver being used for your monitor. I would suggest going to the vendor website and seeing if they have any updated or universal drivers for your particular monitor. There may be more to your particular issue, but its a good place to start if nothing else.
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https://www.reddit.com/r/OLED_Gaming/comments/xsqj7l/psa_if_you_have_nvidia_geforce_experience_ingame/ seems to be the root cause- removing all controllers makes things better
Oh just to be clear, I don’t mean like the monitor has power, I mean windows is wanting to display it’s fancy Lock Screen at all times. I’ll still try that, if it makes a difference this is an Alienware.
What they are saying is that the driver Windows is using is trying to tell it to turn off the backlight (but leave the screen on) like it would do with an LCD, but OLED doesn't have a separate backlight. It needs the right driver to know how to power down that monitor.
Ah gotcha. Will be home soon to try that.
What I find silly is that Linux has no problem handling it :(. Trying to use that more and more, with the lack of hdr being the last holdout
Same issue here, and I know a few people that have it on most cases LCD, not OLED, but I funny think that's relevant.
The mechanism for turning a display off is to simply stop sending a signal.
There was a time when I cared more and actually did into it and windows 10 and 11 do have issues going into standby in in some configurations, with some hardware.
I once pinned down a console command that could actually tell you (cryptically of course) what things were going on that prevented standby or sleep.
Comes as no surprise that Linux does this better... But sadly I'm my case I couldn't use Linux.