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I have a problem with my Windows 7 desktop.

Everything works fine, except that it can't goes sleep, when I try to make it sleeps (clicking on "Sleep" on the start menu), it just locks the session (It does like if I clicked on "lock"),

I have no problems with the Sleep mode with Linux on the same computer... Nothing appear in the event logs (except some services start/stop when it try to sleep)

I also see that when I try to make it sleep, I have some USB-related errors (Communication Failure on my USB UPS, and the screen on my Logitech G15 shows nothing until I restart the services)

It worked at the begin, I don't know why it stopped working.. I would prefer to not format just for this....

I tried to unplug all the USB devices (except the mouse) and disabling as the possible services, that don't change anything..

Any ideas please ?

Thank you

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It happened on a friend of mine's PC when he started to use some kind of "Loader". Do you use such a thing or is it a totally legal/valid Win? (Don't worry we won't rape you if it's not legal but this is a common case.) – Shiki Jul 21 '10 at 22:57
Nop, I own a legal Windows licence – Kedare Jul 22 '10 at 0:57
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2 Answers

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Check your power settings by running through this list (especially make sure the hybrid sleep mode is disabled):

http://www.vistax64.com/tutorials/63567-power-options-sleep-mode-problems.html

It is for Vista, but it applies to Windows 7 (to a degree).

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Thank you very much ! The problem has been fixed by disabling Hybrid sleep mode. – Kedare Jul 22 '10 at 13:52
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You are very welcome! I had this same issue back in Vista. Very frustrating. However they did finally get 'sleep' right in Vista/7 and I use it all the time. – drpcken Jul 22 '10 at 14:07
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up vote 1 down vote

I managed to get my sleep working with the free software Sleep.exe. Be sure to use it with the /f switch

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