fan loud when screen off

Hello,

On my Asus NUC 14 Pro +, with W11 24H2, I set a screen off after 5 min. of inactivity.

When screen is off, NUC fan often turns on max speed.

I can't know what is culprit, fan goes quiet again when I return to desktop. No process uses CPU in task manager after that.

Is there a way to know process(es) using CPU heavily when screen is off, like a process monitor ?

Thanks

Thanks

TairikuOkami said:

Manually Start or Stop Automatic Maintenance in Windows 11

This tutorial will show you how to manually start or stop running Automatic Maintenance on demand in Windows 10 and Windows 11. Windows automatically runs scheduled maintenance on a daily schedule when you're not using your computer by default. This includes tasks such as updates, security...

www.elevenforum.com

How to use Perfmon or Performance Monitor in Windows 11/10

Tutorial on how to open & use Performance Monitor or Perfmon in Windows 11/10. Using this built-in tool, you can monitor the health of your system.

www.thewindowsclub.com

Click to expand...

Thanks for the link, you saved my day.

Well, I found culprit : it's dwm.exe (Desktop Window Manager). I read this with resource monitor.

I launch this before screen off, and read cpu average usage when screen on again.

I'm thinking about my graphics driver, which is integrated ARC on Core Ultra 5 : driver has been published in oct. 2024 according to device manager.

Perhaps a newer version could solve this problem ? I will try next days.