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Vista wakes on its own and locks up

R

RichNY

Member
Recently, Vista began to "wake" from sleep on its own, seemingly randomly, and lock up immediately, without the monitor even turning on. I've tried using the keyboard to launch stuff and watch if the hard drive light works to see if the issue was with the video only (I know there have been some nVidia/Vista issues with sleep), but it appears to be locked, requiring a push of the reset button to get things back. Nothing's changed in my config that I can recall, other than Windows Update patches. I'm pretty sure it started before the Reliability/Compatibility patches, though.

I have all my mouse, keyboard, network adapters, etc. set to NOT wake the machine. I also have it set to "Allow sleep..." when media sharing.

I've tried using the Event Log and Task Scheduler (figuring it might be a task trying to wake the machine up) but can't figure things out. The only clue seems to be that the NAPStatus UI task always shows "Stopped" instead of "Successful" when it locks. In fact, that seems to be the only time that task even shows up when transitioning from sleep. Hard to tell if that's a symptom or cause, though, since it's also set to cancel the task if not successful after three seconds. I can't really tell anything from the Event Log, either. It doesn't seem to say what woke the machine up.

Any ideas? It's driving me nuts because it seems so random!

Thanks!
 
Just to close the loop on my own thread here for posterity in case someone else is having the same issues, I've finally gotten sleep working reliably (five straight days, 20+ sleep transitions) by removing my ReadyBoost-enabled USB drive (I have 4GB of memory anyway, and didn't want to risk trying the related MS hotfix in case it broke other things), and making sure that "Allow the computer to turn off this device to save power" box is *checked* for all USB Root Hub devices. It seems to have been a combination of my motherboard/USB devices waking the computer randomly and the machine hanging when trying to reinitialize ReadyBoost or whatever Vista does with ReadyBoost while waking. Interestingly, if I woke the computer up myself, there didn't seem to be a problem with the ReadyBoost device, but right now I'm enjoying reliability too much to try figuring it out.

 
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