[christbeatty]

Hiya!

I thought I had figured this out yesterday, but.. Nope!

BACKGROUND:
This Windows 7 workstation has power settings applied via group policy over a large network. The settings that apply handle ONLY when the monitor turns off and when the computer sleeps. This computer will go to sleep, as by design, but then wake itself up randomly (about 30 seconds after being asleep).

TROUBLESHOOTING STEPS TAKEN
When the computer originally woke itself up, I ran 'power cfg -devicequery wake_armed' in CMD and it returned that HID Mouse Device was waking up the computer. Because of this, I went into device manager and disabled the 'Allow this device to wake up this computer' box in the mouse's driver settings. While there, I disabled the ability for the network to wake up the computer, and ENABLED the ability for the keyboard to wake up the computer (as we will need SOMETHING to wake it up when it goes to sleep!)

Next, I waited. And waited. And waited. The computer no longer went to sleep. Thinking that the only real change I made was disabled the NIC and mouse from waking the computer up, I unplugged the mouse and waited some more.

Sure enough, the computer then, successfully, went to sleep. It also woke itself up, again. After running 'Powercfg -devicequery wake_armed' showed that the HID Keyboard device woke the computer up (which is silly, because I never pressed any keys).

Next, I swapped out both the keyboard and mouse. Now, the computer will go to sleep when the mouse is plugged in (which fixed the problem if it not falling asleep to begin with), but the HID keyboard device STILL wakes the computer up without me pressing any keys (with the new keyboard plugged in).

I verified that all of the USB ports listed in device manager are not set to 'allow this device to wake up this computer', and switched USB ports on the machine (switching the keyboard and mouse to the front USB slots, rather than the back).

Still, when the computer goes to sleep, it wakes itself up stating that the HID keyboard device wakes it up.

Any thoughts? Please let me know.

 

[Tomshawk]

As much as I hate to say this, and I am sure you do not want to hear it.

Its probably a bad Mobo

I've seen this twice, once was bad MB, and the other was a driver update.
I'm sure you've checked the manufacturer for updates but thought I would ask

 

[jenae]

Hi, yes I originally thought bad MB. Sorry I am sure you didn't want to hear that. I would try the powercfg -h off then on, to create a new hibefil.sys file, just to rule out corruption. Odd as it might sound have you disabled windows media player "automatic updates"?

 

[christbeatty]

Perhaps it could be a hardware issue with the MOBO.. This computer is pretty new (within the past 6 months), but manufacturer defects DO happen, afterall.

Yes, I have updated nearly every driver on the system, and that has not done anything.

Jenae, how would I go about creating a new hibefil.sys file? Additionally, I'll try your powercfg -h off and on and let you know the results.

Additionally, yes; all automatic updates have been stopped on the computer as updates are handled through SUP through AD. Windows Media Player is not installed as per our campus standard desktop image (VLC is).

 

[shawnpb]

Go to Control Panel/Folder Options then view scroll down to

"Hide all hidden files and folders" un-check it
then un-check....... "Hide all protected System files and folders (Recommended)" hit Yes or ok twice.

Then go to "Computer open the C: drive or which ever is the system drive locate "hibefil.sys" delete it. It will be recreated during your next restart.

 

[jenae]

Hi, sorry I have a lot of trouble accessing this site (server errors). Jack, hiberfil.sys is a system file, WRP will not let you delete it.

As christbeatty had already referenced using the powercfg cmd I assumed he knew. Open a cmd as admin and type powercfg -h off ,(press enter). Restart to take effect, this disables hibernation and if you check removes the hiberfil.sys file.

If you wish to use hibernation you go back to cmd (as admin) and type powercfg -h on, restart, hiberfil.sys file reappears.

Corruption in this file is what causes problems this method is designed to remove this corruption.