I recently upgraded to a new motherboard (switched from a 12th gen Intel setup to an AM4) and since then, I've noticed that my mouse can wake up my PC from sleep mode. I couldn't find any relevant settings in the BIOS for this (I'm using an ASUS PRIME B550-PLUS). When I run the command `powercfg /DEVICEQUERY wake_armed` in CMD, it lists only two HID keyboards and a Realtek PCIe GbE Family Controller #2.
I've already gone into Device Manager and disabled the wake feature for both of my HID mice, but it still happens. My mouse is a wireless Logitech G305, and I've tried different USB ports, including one directly on the motherboard.
Sometimes, I accidentally bump the table or push the mouse around while working on my desk, and the PC just wakes up. Right now, my workaround is to put the computer to sleep, then flip the switch on the bottom of my mouse to turn it off, but that's getting annoying. Is there a software solution to stop this from happening?
1 Answer
You should check the BIOS settings related to power management. Sometimes there's an option called POWER-ON-WAKE that can be disabled. You can access this in the BIOS by pressing F7 for Advanced Mode, then navigating to APM Configuration. Setting ErP Ready to Enabled(S4+S5) might also help, but just know that enabling ErP can turn off USB power when the PC is off, so your mouse won't wake it up then.
Also, disabling Fast Startup in Windows can make a difference. You can find that under Control Panel > Power Options > "Choose what the power buttons do" and unchecking "Turn on fast startup" could solve the problem too.

I checked my BIOS, but I couldn't find any option for that. I tried enabling ErP Ready, and even with it set to Enabled(S5), my keyboard and mouse can still wake my PC. And I disabled Fast Startup a while ago because it was causing issues, so I don't know what's going on.