Hello, I need some help here. I did a clean install of Windows 10 20H2, I installed ISO 20H2 19042.631 from TechBench and installed with no problems, I set up all of my programs, drivers, disable some services, etc as I would with any other Windows version, working fine so far, except my monitor never goes to sleep at any amount of specified time, it just stays on and I have to turn it off manually, the version I had before was 1809 and never had this problem. I haven't touched any power setting or changed anything nor I modified the power plans; they are as it comes, stock. I've tried looking for a solution, but none worked, I am thinking I may need an update, but I'd like to know which one because I am always cautious with updates and such, if there is any that fixes this. I reinstalled the same ISO clean to test if I may have compromised the first install and did exactly the same thing, nothing installed. Full clean install did nothing on this regard and my monitor does not go to sleep. The strange thing is that Suspend works perfectly fine and computer comes back quickly too; it turns off monitor and everything, but the option to ONLY turn off the monitor without Suspend is not doing anything. I even removed the Nvidia driver to check and does the same thing. What can I try? Thank you. Edit: Solved, it was an Xbox 360 controller driver preventing the monitor from sleeping, I installed an older one and the issue got fixed.