Why does my Windows 7 computer freeze after waking up from Sleep?

Question

Moderator edit: if you have a similar problem, please ask your own question, since it seems there are several things that can cause this situation, it is better to treat each case separately.

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Hey guys. I have Windows 7 running on my computer and everything is perfect. There's only one little problem. Sometimes when I leave my computer, I come back and my monitor is turned off or asleep, whichever it is. This is fine, I set it to do this. However, after turning on the monitor and moving the mouse around, the mouse cursor freezes; both the keyboard and mouse don't respond to anything, for example the keyboard's windows key won't bring up the start menu and moving the mouse around does not move the cursor around on the screen. I have to wait about a minute or two before things start working again.

I figured this was a power savings setting problem, so I went into Control Panel > Power Options.

I only have Turn off Display => 30 minutes and Put Computer to Sleep => Never. Of course, I went into the advanced power settings to look through there. I put Never to turn off the hard disk, Sleep after never, and that's about it. Nothing else there looks like it might be causing this. I went into the device manager and checked the mouse and the keyboard, and they both have the Allow this device to wake the computer checked for both of them.

Perhaps this other bit of information might help: Sometimes I VNC into my PC using my MacBook, and sometimes, as soon as it shows me the desktop, the same thing happens. The mouse won't move and VNC won't register any events on the server (Which is my PC of course). I close the client (And I know it has nothing to do with the client), then immediately restart it and try to connect. When I click the connect button, it hangs there, as if the PC is not responding.

Basically it's like whenever I try to wake the computer from sleep, it does so by showing me the desktop, then it freaks out.

Then again, I guess the computer isn't sleeping because the setting is set to 'Sleep after => Never'. I honestly don't know what's going on, would appreciate any insight. Thanks!

Answer 1

It seems that the solution to this, in my case, was simply to setup a screen saver, haha. Ever since I set one up, I have not experienced this problem. Hopefully, I imagine this has been fixed in the final release (RTM) but for the release candidate, setting a screensaver works just great.

Answer 2

I think the hard drives don't support Windows 7's new Power Management settings.

I'm getting regular Blue Screens of Happiness whenever I try to "wake up" my E-Sata external hard drive. I installed the newest Intel Raid drivers (which I hope contain some updated drivers) and it's better now, but still not perfect.

The default Power Management options in Windows 7 Beta turns off the Hard Disk after 20mins. This could cause problems when the PC comes out of sleep mode or hibernation. To work around the problem set the Power Options for the Hrd Disk to never turn off. To do this

1. Click Start – Control Panel – System and Security – Power Options
2. Click “Change Plan Settings” on the “Balanced (recomended)”
3. Click “Change Advanced power settings”
4. Under the “Turn Off Hard Disk after” option change the timing to “0″ which should set it to Never. Click Apply and OK.

Answer 3

Over at Lifehacker they have a post about this:

Windows only: Ever wonder why your laptop's battery seems to die too quickly? The Windows Help blog points out a hidden command-line switch that generates a report with loads of helpful troubleshooting information.

The report lists all of the devices that are causing problems with sleep mode, explains the different power saving modes your computer supports, and even gives you detailed information on your battery—invaluable information when your system takes forever to go in and out of sleep mode. Generating the report is easy enough—just open up a command prompt in administrator mode using the context menu -> Run as Administrator option, and then type in the following:

powercfg -ENERGY The utility will take a while to generate the report, sometimes more than the 60 seconds it quotes you—but when it finishes you can open up the generated file in your favorite web browser. Once you've examined the report, you can figure out if you need to do some tweaking or update a driver.

Somebody else also suggested updating the DirectX drivers, though I have no idea what that has to do with sleep mode...

Answer 4

I had this problem as well, along with random cases of audio freezing and screens getting no signal in a full-on crash. I'd guess it has to do with the USB recognition/awareness of things plugged in, but for the moment just chalk it up to the fact that W7 is still Beta, and stuff like this will happen. Here's to praying for an RTM fix >.>

Answer 5

I believe I have this problem worked out. I upgraded from XP Pro to Win 7 Pro 64 bit and was experiencing hangs when booting up and when waking up from sleep. Its actually an easy fix, believe it or not!

1. Go to power settings, and somewhere in there theres a "turn off hard drive" option. Disable this. I read this can cause crashing on wake up.

2. Make sure that your BIOS is set to S3 Sleep Mode!! This is important because some enable both S1 and S3 at the same time, which will result in a hang on waking your system up.

I think this is all I did, but I'm not writing this from my computer. Ive seen faster sleep times on both going into standby and coming out of standby though since I've taken these 2 easy steps, with a 0% hang up rate.

Good Luck,

matmatician

Answer 6

Was having same problem. In power plan settings, monitor set to turn off at 2hrs, put computer to sleep set to 'never', however, in advanced power settings hard drive was set to turn off after 40 mins. Changed this to about 1700 mins and all seems OK.

Answer 7

I had the same problem with my mouse locking after the computer came out of hibernation using Windows 7. I read all the technical responses on all the sites and nothing worked. I tried many suggestions and nothing worked.

I solved my problem. How? I removed my mouse and replaced it with an extra identical Microsoft mouse. No problem for the last 3 weeks.

You figure; I can't.

Answer 8

To resolve this problem in Windows Vista, run the powercfg -h on command at an Administrative command prompt to enable the hibernate feature and the hybrid sleep feature. To run this command, follow these steps:

1. Click Start, click All Programs, and then click Accessories.
2. Right-click Command Prompt, click Run as administrator, type powercfg -h on, and then press ENTER.