Dell Studio CPS 1340 will not enter hibernation...

I can get it to enter S3 just find but S4 will not work. I have checked the control panel power options. I have run powerconfig -h on. I have tried ending every non-essential process and service to see if one of them was causing it. Still didn't work. I have tried re-enabling the paging files (I had it disabled to save battery power). Still nothing. I could not find a hibernation file on the hard drive. There is plenty of space for it. Even typing powercfg -h -size 100 did not work. I have tried reinstalling my graphics card driver. I have checked the BIOS, still nothing. I just can't seem to figure it out. Has anyone else had a problem like this. I am running Windows 7 x64.

Sorry for the bump, but this issue still isn't resolved. Standby is nice, but my laptop drains too quickly for my liking while in standby.

richc46 said:

If the excellent tut does not help, be sure to read the comments that follow

Hibernate - Enable or Disable[2]=Power Management

I tried that method before but it didn't work. I tried it again with no different results. The hibernation file is present on the C drive, but does appear to be used. I checked to see if it was read only, it wasn't. Everything indicates that hibernation should work. But when I click hibernate in the start menu, the screen goes black, but will instantly turn on again when I touch the touch pad. The hard drive light indicates that the computer is not writing anything to the hard drive. I didn't see anything like this in the comments of that tutorial. I think what I will try next is going into my linux and hackintosh installs and see if hibernation is supported.

ok, I booted into linux and osx86. In linux it went into hibernate mode and successfully resumed without any trouble. In my hackintosh install, I had to run the command "sudo pmset -a hibernatemode 1" to change the default sleep state to hibernate (since osx doesn't give you a choice in the menu). Once I did that, it was able to enter and exit sleep mode without any trouble. I wonder if it might be the mbr setup I have.

I have my default boot partition set to my hackintosh install. When that boots up, it shows me a boot menu with which I can access both windows and linux. On that boot menu, windows is set to be the default choice. Once I select that, it will boot into windows as normal. There is no BCD menu (I didn't like the feel of it as compared to my chameleon bootloader). I wonder if windows refuses to enter hibernation because it would have to go through the chameleon bootloader to get out of it. Any thoughts on this?

well this is interesting. I went into the performance part of the control panel and clicked on advance tools. It brought up a message telling me that my wifi device was causing trouble with entering sleep/hibernation mode. I tried uninstalling and I tried disabling the device like it said. Neither fixed the problem. The dell website doesn't appear to have a windows 7 version of the driver for my atheros 1515 adapter. I have been using the one that came the OS.