Computer not hibernating or sleeping correctly

Hi all,

Recently i have been having trouble getting my Dell Studio 1747 laptop to hibernate or sleep. When i go to start and hit either sleep or hibernate, the screen shuts off but the computer never fully goes off. The fans continue to run and the usb power lights are still on. It will stay like this for hours. I have let it go all night before and the only way to shut it off is to hold the power button and do a force restart.

I have had this problem before. After a different discussion post we determined it was a power settings problem and after I set hard disks no not shut off the problem was solved. I had to reinstall my OS and when i put the same power settings back, the problem continued to happen. But i still think it may be a power setting. I have all of the current drivers installed and my computer is free of any viruses. Im running Windows 7 Pro x64 but it was also a problem with home edition. Any help or ideas will be greatly appreciated! Thanks in advance!

Try another display driver.

Try with Hybrid sleep on and off.

Check in BIOS setup for ACPI Power settings. You want the highest state available, S3 ideally.

Check the Performance log for what is occuring at sleep time: troubleshooting steps

If problem persists run the tool the Pro's use to trace these issues: Trace Windows 7 boot-shutdown-hibernate-standby-resume issues - MSFN Forums

Gregrocker, thanks for your reply. Funny enough i fixed the problem accidentally, when i went into the BIOS to check for the ACPI power setting, after not finding it i went to exit but accidentally reset the bios back to factory defaults. I figured what the heck I might as well observer the computer with the reset bios and see if anything happens and as it turns out its been a few days with no problem. Not sure what it was in the bios that fixed it but chuck it up to one of life's great mysteries. Thanks for your reply!

This can happen. I'll find no settings in a BIOS for multi-display but then suddenly dual monitors will work after resetting BIOS to defaults. Go figure.