Windows 8 Pro goes to Sleep after 60 seconds of inactivity

So after a lot of digging and trying many things, the below solution worked for me. But if someone can verify this worked for them, that would be great:

It seems like maybe Windows is viewing the return from sleep as a remote wakeup which apparently times out to idle faster than other wake ups. To change this function, delete the following registry key: (maybe using the power button to return to sleep as suggested would be a work around?)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0\DefaultPowerSchemeValues

To do this, Win Key + R (brings up the run menu), then type "regedit.exe" and navigate to the key location listed above. To be safe, you should save (export) that key before you delete it.

Alternatively, you could edit each of the sub-keys instead of deleting them. Each corresponds to one of the power plans. If you choose ACSettings you are choosing a behavior for when the machine is plugged in, DCSettings are for battery power. If you edit the key, switch do "decimal" The value listed is in seconds, and can be changed to any value you choose.

Please see this post for more information: http://social.technet.microsoft.com/Forums/da-DK/w7itprogeneral/thread/6909b30f-f71d-4dc6-9c42-12db1d38944f

I have been having this problem for a few weeks now, and it's becoming increasingly annoying.

I rechecked all my power settings and my computer should not be sleeping, but it times out after two minutes. My default way of waking it from sleep has always been the power key, so that's not it.

So I found the above fix today and tried it out by changing the values in seconds to 3600 on ac and 600 on battery. I went back to work thinking that I had a fix, but when I stepped away from my computer for a few minutes sure enough it was sleeping when I came back.

I am on a Qosmio x500-930x laptop. I sure would like to find a solution.

Umm, HELLO Microsoft?!  This is obviously a huge issue and affecting a lot of people, all with varying hardware.  Why isn't there any official acknowledgement yet by a Microsoft empoloyee on this thread?  It's been nearly THREE months since this post was created, with a steady stream of replies by users reporting the same EXACT issue.  It's easily reproducable by waking your computer up from sleep mode via a USB keyboard/mouse.  After 2 minutes or so, the computer will put itself back to sleep, even if you had disabled sleep mode altogether.

For a very technical description of what's probably the culprit, check out this post on My Digital Life:

http://forums.mydigitallife.info/threads/40783-Windows-8-entering-sleep-on-its-own?p=699334&viewfull=1#post699334

Even if you can't fix the problem, at least acknowledge it so we know you're working on it.

Using the Power Button as a workaround is not acceptable, as some people have their laptops folded up in a box somewhere connected to a monitor, and using a USB mouse/keyboard.  In these scenarios, it's impractible to always use the power button to wake up the computer.

Also, the theory about the USB keyboard/mouse wake event being similiar to a remote wake-up event is very interesting.  If you wake up a machine using wake-on-LAN magic packet, that machine will go back to sleep in 60-120 seconds if no local events happen, such as keyboard or mouse input.  You can wake up the machine and access its files over the network, but that's not enough to convince it not to go to sleep.  I've had to actually initiate a remote desktop session on the woken up machine to prevent it from going back to sleep.  I'm curious if the same thing can be done for this Windows 8 issue...if you wake up your Windows 8 machine via a USB mouse/keyboard, then remoted into it using Remote Desktop from another computer, i'm curious if the laptop would then turn around and go to sleep after 2 minutes of idling.

Bumping to keep the thread alive, and so hopefully get some attention.  Having this issue with a new HP laptop.

(Incidentally, I haven't looked into the nuts and bolts of ACPI, so is the DSDT table the responsibility of Microsoft or the laptop manufacturer?)