

All chipset drivers and everything I can think of updated (monitor drivers included) 15 minute monitor inactivity to turn monitors off

Acer KG271U (Displayport) & Benq Zowie XL2730 (HDMI) I have gone as far as resetting Windows (reset & keep my data) but it still happens.

This occurred on my previous mainboard and CPU and continued after I replaced them recently. I am running Windows 10 21H1 and having an issue with monitors not going to 'sleep' after the inactivity timeout. Hoping someone can help me here as I'm running out of ideas.
