Well same thing happen to me. my computer still can't get out of sleep mode. but to solve your turning the computer ON problem. what i do is turn it on, then wait, u will hear the computer turning itself on and off, but nothing is showing on the screen. so make it turn on and off, 3 time.( such as hearing the computer turned off, so that one,THEN IT TURNS ITSELF ON AGAIN, next time it turns off, that count as 2, and so on). on the third shut off then u press and hold the off button, to force it to shut down, then wait. about 5-10min., or less then 5. after then u turn the computer on.it should be on by now. if not try it again. if it happens again try one more time, if it happens again. then there something really wrong with your computer.


HOPE THIS HELPS.

The same happens to mine, i have windows vista and i've only had my laptop a month now and everytime i close the lid when it's still on it will go to sleep and when i open it again it wont wakeup, its so annoying and i have to restart it and sometimes it WONT restart, it sometimes work when you take the battery out then back in again and put it on charge.

A similar thing happens to my 2009 HP Vista laptop. I can be in the middle of typing, plugged in, and it will go into Rest mode. I'm making up this "Rest mode" because it behaves differently than Sleep mode. I'll be typing and the screen will turn off and two of the display lights will turn red but the others will remain on. Pressing any key does nothing. Opening and closing the lid (which is set to actual Sleep mode) does nothing. Basically, I need to power down and power back up.

Also, sometimes it will happen as quickly as 2-3 minutes after I open the laptop and start using it. Other times I'll be using it for hours before anything happens. Most days, I never see this.

When I close the laptop, it goes to sleep, and a normal spacebar click wakes it up.

I've checked all the power savings modes but found nothing unusual. Again, it isn't going into a normal sleep mode that a power saving feature would trigger. And it's plugged in! And I'm typing when it happens

Anyway, I'm just posting this so others can read and share similar experiences or the fix ...

Hi- This kept happening to my dell laptop (which also runs vista). The guys at dell were able to remotely uninstall and reinstall my Display adapter (in the Control Panel, under Device Managers). This seems to have worked. My dispay adapter was named Mobile Intel(R) 965 Express Chipset Family. It's not clear whether there was an update or patch that could have fixed this....

I have a compaq as well and it does the exact same thing! i dont know how to fix it but it is really annoying because i have to turn it off and restart it every time. if you find out anything about how to fix it please let me know!

Same thing with mine i have a windows proffesional and when i put it to sleep then i turn it on its just black and doesnt wanna turn on so i gotta press the power button turn it off and turn back on very annoying if someone knows how to fix this please tell me =[

Hi, I see a lot of you are having problems with Vista Laptop not coming back from sleep. I had the same problem. I found the solution has to do with the hibernate file. Solution is here: <a href="http://annoyances-resolved.blogspot.com/2009/08/laptop-wont-resume-from-sleep.html">vista laptop sleep problem resolved</a>, see also http://annoyances-resolved.blogspot.com/2009/08/laptop-wont-resume-from-sleep.html

SAME THING HAPPENED TO ME!!! my compaq desktop went into power save and whenn i hit every key nothing happened. you may be able to get it to work if u move the mouse around. i know it isnt the brand because it also happened to a dell computer i had and it eventually just worked randomly. i know it is sometimes be caused from performance problems, but not always. this isnt the problem with mine i have almost no clue to what is wrong with it. um help??? PLZ!!