Everything was fine for some months, then my laptop refused to wake from sleep one day. When I tried to wake it, all I got was a black screen. The laptop's LEDs turned on (buttons for power, and A/V control), but nothing came on the screen. I had to hold down the power button to reboot it. The only problem is the computer wouldn't start up. I have to restart multiple times before the computer boots. In many instances the computer LEDs come on, but the laptop won't boot. Instead, it restarts itself numerous times. I then have to hold down the power button to force a shutdown, then restart again. Typically, the laptop will eventually restart after this occurs once or twice and always to the boot screen which asks about safe mode, etc. It doesn't seem to matter if my laptop goes to sleep or hibernates. the problem is the same.

My laptop runs a dual core AMD Turion TL64 and I'm running the 32 bit version of Vista Home Premium. My video card is an nVidia GeForce Go 6150. My laptop has 2gb of RAM. I've heard mention of issues related to HD audio devices. If it matters, my laptop also has Conexant high definition audio.

I'd appreciate any help. To date, updates from HP, nVidia and Microsoft have not resolved the problem.

Thanks in advance.

My laptop half the time doesn't sleep at all. The screen will go black, but nothing else turns off. If it does turn off it takes about 5 minutes (which is annoying when I have to stick it in my backpack to go to class...). I am always happy once I see the wireless light turn to orange indicating it is off, because that means the rest is about to turn off too.

I've never had problems with it coming back...unless it doesn't sleep in the first place.

I thought it maybe had to do with how much was open at the time, but nah, it happens even when nothing is open. Some of you say that the 2GB isn't so bad to use hibernate...but when you have a small hard drive you want as much free space as you can get!!

About restarting immediatly after putting to sleep (from someones comments), I had the same prob - go into device manager -> nic card -> properties -> power mgt tab -> remove/uncheck "allow this device to wake the computer" from sleep mode. Fixed my prob right up, now sleep works as it is suppoed to (at least going into )

Think I will watch this post, and in the meantime use hibernate...

Thanks!

so what i did is changed all my settings to hibernate. whats wrong with hibernate! Set to hit your power button to send it to hibernate big deal ! Everything when you re-power will be in the same state.

Sometimes when i get out of bed after shutting computer down overnight i see my computer running but that is because i have my windows update and virus scan set on automatic. but i have my hibernation set for 1 hour so it will sooner or later hit that hour mark in idol and just hibernate again.

so to change all of your settings on vista just start by changing nvidia. so click on (start menu)in (start search) type in word--> device manager.
scroll down to network adapters and click on nvidia n force. next go to power management click on. Next make sure allow the computer to turn off this device to save power is (checked).next make sure allow this device to wake the computer is (unchecked) click okay ! close all boxes out.

now go to (start menu) again to (start search) and type in power options click on. Make sure energy star is checked and this doesnt matter between the three plans when you "hibernate". Next go to bottom of energy star click on change plan settings. keep moniter on as long as you like but dont have it set for 2 minutes because if your like me im trying to read something the screen just blacks out it can be annoying. I have my moniter set to 30 minutes. Prices of moniters arent much anymore so dont worry about saving on your moniter 30 minutes wont hurt. But next change your put the computer to sleep to (never) for good because it will never hibernate it will just keep going to sleep on you and waking back up. Go down and click save changes to make sure this was saved for you. Now go to change advanced power settings click on. Next go to hard disk click + setting and change setting to never because when your system hibernates you want to power back on and you want windows to resume windows and not reboot your whole computer. next go down to sleep and change settings to never. allow hybrid sleep off. Next below hybrid is hibernate and i have it set to 60 minutes on mine.
Next scroll further down to (power buttons and lid) click + there and change to hibernate also change start button menu to hibernate. go down and click OK. Go back out and click save changes just to be safe on everything.

i never had this problem with windows xp but if you do just go into power options to change to hibernate on all settings. I dont see power buttons and lid on xp.

please print if you ever have to go back again and change settings. sleep is faster but hibernate is in between shutdown. So i just choose hibernate !

And dont forget about the computer waking up from time to time to update. it will go back off in time. or you can manually run virus scan and download windows update.

Nowadays, I find myself rebooting about every 3 days because sometimes after waking from sleep, my network stops working about 5 minutes later. I can ping and sustain current connections but I can't create new connections. I can't establish new TCP connections..drives me nuts.