I closed my laptop to put it into sleep mode and then hit power button to turn in back on ..the green power light would come on but the screen was still black. Then I couldn't get it to turn back off. I unplugged it from the power cord and let the battery run down and now when I plug it back up it will not do anything. I cannot get it to come back on
You have trapped it on sleep mode and there is nothing you can do for that. the only way you may be able to fix it is 2 try and unstall windows itself or even taking it to a technician that knows about the laptop more than what you do. (dont take it offence)
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Your settings in power mode have changed. Open up display and go to the screen saver tab (win 7) you will see the power savings option at the bottom. Go into that and change what the buttons do. You will have 3 situations to change. What happens when i close the lid, power button and sleep mode. Chances are you gave everything set to do nothing
Try to go into the energy management settings (by clicking the power mgmt icon in your system tray) and seeing what your sleep settings are. You should be able to customize your sleep settings to do more than turn off the screen.
I'm having the same problem, but I don't want to have to turn off my computer EVERY time it does this. (I have not been able to shut down the laptop normally because it goes into sleep every time.) I've heard that after 3 hours it builds up an eletrical charge and you have to take the battery out, but I havn't had it on for 3 hours at a time.
Hibernation is the biggest creator of software nightmares...it has killed more computer systems and corrupted more systems than I can count. Go to control panel > power options and change your power settings in there. Turn hibernation off and just have the computer go to sleep after a certain time. You will find that the computer will come right back in sleep mode and will be ready for action. Don't worry about the system running until sleeping and then waking up, it's a lot better than finding your entire operating system is now corrupt and has to be re-installed.
I've had spotty luck with Windows and sleep or hibernate modes. I would suggest just disabling sleep/hibernate mode. The options can be found under the control panel under power options. While turning off the sleep mode won't help your battery life, if you ask me, it beats having to power off the laptop by pulling the battery out. If you don't want to turn it off, you can try adjusting the amount of time it lets pass before it goes to slee.
do you leave the laptop open or close when you are no using it?
if you leave it open, there is a switch at the top of the F keys, close to the LCD panel. press that button will turn on the the machine. if not, press the enter key twice and wait 10 sec. it should come up.