Windows 8 and 8.1 Forums


Win8 RTM: Can't sleep, hibernate, shutdown or WOL

  1. #1


    TX
    Posts : 3
    Windows 8 Enterprise x64 (RTM)

    Win8 RTM: Can't sleep, hibernate or hybrid-shutdown


    I just upgraded to Windows 8 Enterprise x64 RTM yesterday, and have noticed an annoying problem that wasn't present under Windows 7 Enterprise x64 (which I was running previously). Specifically, the machine will not sleep, will not hibernate and will not shut down. When any of the three are attempted, they appear to succeed, but then the computer will immediately wake up again. In the case of a shutdown, the computer will actually power completely off and then start right back up immediately. I never used to sleep the machine in Windows 7, but I know the hibernation used to work and certainly shutting down did as well, as I shut the machine down every night.

    In the event viewer, I have a Power-Troubleshooter event (ID 1) every time the machine wakes back up from an attempted sleep, hibernation or shutdown, but it always indicates that the wake source is "Unknown." I have tried unplugging every single Ethernet, USB and eSATA cable from the PC until nothing was left plugged in but the monitors, audio out and AC power -- just in case a device was sending a magic packet or some kind of wake-up signal. Even so, I still experienced the same immediate waking problems on shutdown, hibernate or sleep.

    I was able to solve the inability to shut down by disabling Windows 8's "Fast Startup" option, which as I understand it uses a kind of hybrid hibernation. It makes sense that this would help, since hibernation is not working properly on my system. At least with "Fast Startup" disabled, I can actually shut the machine down. It's a pity though because I really liked Fast Startup's performance.

    I've tried installing the authentic manufacturer drivers for my chipset (Intel 975 / ICH7 series), onboard LAN adapters and so forth in case the generic Microsoft drivers were at fault. The specific driver installation seemed to work fine but my problem remains.

    Full system specs are in my profile, but it's kind of an old box I put together in late 2006. Core components of possible relevance to this issue are an Asus P5W DH Deluxe motherboard and Seasonic S12 600W power supply. The motherboard is running the very latest BIOS revision (3002). My Windows 8 installation was an in-place upgrade of my previous Windows 7 installation; everything seems to be working fine except for the weird power stuff.

    Here's one other thing I should note, which concerns me somewhat as it is related by definition. In the P5W DH Deluxe's BIOS, there is an "ACPI 2.0 Support" option which defaults to "Disabled". Back when I built the machine I left it alone so it has been disabled this whole time. During my troubleshooting of these issues earlier tonight, I decided to try switching it to "Enabled" to see if it would have any effect. It has not fixed the issues at all, but it does make me wonder. Is there any way to tell whether Windows 8 has correctly identified the system as being ACPI 2.0 compliant? I think I remember in the old days WinXP used to have to be completely reinstalled when that switch was flipped.

    Additionally, and much to my consternation, I can no longer use Wake On LAN. I've actually fixed the WoL issue. I had to go into Device Manager, find my network adapter and get the properties of it -- then, on the Advanced tab, find the property called "Wake From Shutdown" and set it to "On". This must have been either a new property in the Win8 driver for my network adapter, or was reset back to Off for some reason when I did the Win7 -> Win8 upgrade.

    Thanks in advance to anyone for any ideas about my sleep/hibernation troubles.
    Last edited by Chief Oddball; 26 Aug 2012 at 20:28. Reason: Removed wake-on-LAN issue (resolved)

      My System SpecsSystem Spec

  2. #2


    TX
    Posts : 3
    Windows 8 Enterprise x64 (RTM)


    I've put together some additional information on this issue, though I am not really any closer to solving it.

    If I try to put the computer to sleep, after it immediately wakes itself back up, the process "System interrupts" starts perpetually chewing 10-20% of CPU cycles. This suggests a driver or a hardware problem somewhere. I've tried disabling my onboard network adapters, disabling all of my audio inputs and killing the print spooler process, but none of these tricks helped. I might have to keep going down the list in Device Manager and disabling near everything in a bid to find out what it is.

    Also, I've used the powercfg command line tool to run some diagnostics on the sleeping / hibernation issue. In running powercfg /requests, I found that \FileSystem\srvnet has recently sent requests to my machine. However, after changing my power profile to allow the computer to sleep even in the event of filesharing activity, and furthermore setting up a request override for srvnet, I found that the computer is still waking up right away and the problem remains unsolved. It even refuses to sleep when powercfg /requests lists no requests whatsoever for any of the categories.

    I also ran powercfg /energy and then tried putting the machine to sleep; the resulting energy report informed me that I have four USB devices not entering the Selective Suspend state, but also claims that this issue will not prevent the system from sleeping. The only other error in the energy report is the fact that PCI Express Active-State Power Management (ASPM) has been disabled due to a known incompatibility with the hardware in my computer, whatever that may be.

    Edit: I restarted in Safe Mode with command prompt access to test further. Still had the same sleep/hibernation problem there!

    Still fishing for clues. If anyone's got any further suggestions, please let me know.
    Last edited by Chief Oddball; 26 Aug 2012 at 19:27.
      My System SpecsSystem Spec

  3. #3


    I have also a P5W DH motherboard with W8x64.
    I solved "Fast Startup" and suspend problems just changing from 8 usb ports to 6 ports on bios.


    Now I've the following problems:
    - sometimes usb mouse doesn't work at startup
    - the computer always starts if I press any key on the keyboard (no usb)
      My System SpecsSystem Spec

  4. #4


    TX
    Posts : 3
    Windows 8 Enterprise x64 (RTM)


    Quote Originally Posted by ultramaximum View Post
    I have also a P5W DH motherboard with W8x64.
    I solved "Fast Startup" and suspend problems just changing from 8 usb ports to 6 ports on bios.


    Now I've the following problems:
    - sometimes usb mouse doesn't work at startup
    - the computer always starts if I press any key on the keyboard (no usb)
    Awesome. Thanks for your help! Changing from 8 USB Ports to 6 USB Ports in BIOS finally fixed my sleep/hibernate/fast startup problems too. Of course now the two USB ports on the front of my case don't work, but I wasn't using them anymore anyway (I have a USB hub on my desk) so it's no great loss.

    Not sure about your other problems; there is of course a USB port on the back P5W DH which allows you to start up the machine if you plug your keyboard or mouse into it (I think it was intended for an infra-red remote receiver) but if your keyboard isn't USB, then that shouldn't have anything to do with why your keyboard is waking the computer up.

    Thanks again for your help on the USB setting.

    Edit: I just wanted to add that although Windows 8's Fast Startup mode works now (and does not prevent the computer from staying off), now Wake On LAN does not work when the machine is in a shutdown state. If I turn Fast Startup back off, then the machine will wake from a full shutdown. Regardless of whether Fast Startup is enabled or disabled, Wake On LAN still works when the machine is either sleeping or hibernating. I'm finding a lot of reports of this same problem on the web so I'm going to assume it is either a known problem with Win8 or by design.

    I also found this Microsoft support document which suggests it's actually by design that Win8 won't WoL when shut down, due to power conservation measures:

    Wake-on-LAN behavior in Windows 8

    ...but the article claims that WoL is deliberately unsupported from both hybrid shutdown (Fast Startup enabled) and classic shutdown (Fast Startup disabled). In my experience I found that WoL from classic shutdown is possible.

    I have decided to leave Fast Startup disabled so that I can always remote wake the computer if need be, as sometimes I need to do that from a remote location. Now that I can hibernate the machine, I will likely be doing that most of the time instead of shutting it down anyway, so I don't really lose much.
    Last edited by Chief Oddball; 03 Nov 2012 at 11:04.
      My System SpecsSystem Spec

  5. #5


    Quote Originally Posted by Chief Oddball View Post
    Quote Originally Posted by ultramaximum View Post
    I have also a P5W DH motherboard with W8x64.
    I solved "Fast Startup" and suspend problems just changing from 8 usb ports to 6 ports on bios.


    Now I've the following problems:
    - sometimes usb mouse doesn't work at startup
    - the computer always starts if I press any key on the keyboard (no usb)
    Awesome. Thanks for your help! Changing from 8 USB Ports to 6 USB Ports in BIOS finally fixed my sleep/hibernate/fast startup problems too. Of course now the two USB ports on the front of my case don't work, but I wasn't using them anymore anyway (I have a USB hub on my desk) so it's no great loss.

    Not sure about your other problems; there is of course a USB port on the back P5W DH which allows you to start up the machine if you plug your keyboard or mouse into it (I think it was intended for an infra-red remote receiver) but if your keyboard isn't USB, then that shouldn't have anything to do with why your keyboard is waking the computer up.

    Thanks again for your help on the USB setting.

    Edit: I just wanted to add that although Windows 8's Fast Startup mode works now (and does not prevent the computer from staying off), now Wake On LAN does not work when the machine is in a shutdown state. If I turn Fast Startup back off, then the machine will wake from a full shutdown. Regardless of whether Fast Startup is enabled or disabled, Wake On LAN still works when the machine is either sleeping or hibernating. I'm finding a lot of reports of this same problem on the web so I'm going to assume it is either a known problem with Win8 or by design.

    I also found this Microsoft support document which suggests it's actually by design that Win8 won't WoL when shut down, due to power conservation measures:

    Wake-on-LAN behavior in Windows 8

    ...but the article claims that WoL is deliberately unsupported from both hybrid shutdown (Fast Startup enabled) and classic shutdown (Fast Startup disabled). In my experience I found that WoL from classic shutdown is possible.

    I have decided to leave Fast Startup disabled so that I can always remote wake the computer if need be, as sometimes I need to do that from a remote location. Now that I can hibernate the machine, I will likely be doing that most of the time instead of shutting it down anyway, so I don't really lose much.
    I've some problems (BSOD) with Fast Startup , so I've also deactivated it.


    Note that the 2 ports we deactivate are the two front usb ports. And those are the ports that are receiving energy when computer is shutdown and create the problem.
    Last edited by ultramaximum; 05 Nov 2012 at 05:32.
      My System SpecsSystem Spec

  6. #6


    I discovered how to keep working the 8 USB ports and the sleep/Fast Startup function.
    - First, take an screenshot of the Universal Serial Bus Controller at Device Manager.
    - Reactivate 8 USB ports on the BIOS.
    - Go to Device Manager and compare USB branch, before and after with the screenshot.
    - Open properties for the new nodes of the tree (Generic USB Hub and USB Root Hub)
    - Go to Power Management tab, uncheck Allow the computer to turn off this device to save power.
      My System SpecsSystem Spec

  7. #7


    Posts : 301
    Windows 8 Pro


    I would like to get some more information on this item. "powercfg -requestsoverride driver \FileSystem\srvnet system" will solve the problem with allowing PC to sleep, but it will also break network communications. Does anyone know how to reverse this operation?
      My System SpecsSystem Spec

Win8 RTM: Can't sleep, hibernate, shutdown or WOL
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