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Problem
When I tell my computer to sleep, it hibernates instead of sleeping. This occurs regardless of whether I tell it to sleep using the button on my keyboard or using the UI. Interestingly, when it goes to sleep by itself (as a result of user inactivity), it works normally.
Troubleshooting
Here's what I've checked:
- Windows event log confirms that it's supposed to be sleeping:
Event 42, Kernel-Power
withTargetState
andEffectiveState
set to5
. Message in log entry is:The system is entering sleep.
- Sleep button action is set to Sleep.
- Allow hybrid sleep is set to off.
- Timer-based hibernation is disabled.
For the skeptics
Here's why I think it's hibernating rather than sleeping:
- The HDD indicator light and fans stay on for a few minutes before I see and hear that the computer isn't running.
- Clicking the mouse and pressing keyboard buttons don't wake the computer up. I need to turn it back on using its power button.
- It completes a boot sequence instead of instantly restoring its previous state like it should.
- The HDD indicator light stays on for several minutes after starting up.
- The whole process of "sleeping" and subsequently "waking up" takes several minutes.
Computer set-up/configuration
- Latest updates installed from Windows Update.
- This is a clean OS install done by me straight from an original DVD.
- Using drivers provided automatically by Windows.
1What are the technical specifications? You tagged this question as
[windows-8]
and[windows-8.1]
. I assume you're running the latter? Is it fully updated? Was Windows preinstalled when you bought the computer or did you install it yourself? Are you using Windows 8(.1) certified drivers? Are you able to put the system to sleep if you manually disable hibernation (powercfg -h off
)? – and31415 – 2014-08-31T16:45:18.060@and31415, I just updated the question with the information you asked for. I tried out disabling hibernation using the command you gave, and it solved the problem, so you can turn that into an answer for me to accept if you want. Thank you! :) – Sam – 2014-09-01T08:35:46.263