Was having this same problem and I fixed it. Check to make sure it's actually not waking! In my case the computer itself was waking but the display adapter was not. I could hear the processor fan come back on, the hard drives spin up, but nothing on my screen. In my BIOS, there was an option to not let the integrated graphics adapter sleep. It was called "RC6 Render Standby" and I turned it off -- fixed!
windows 8 won't wake up from sleep mode
I have a Dell desktop with Windows 8 and it will wake up from sleep mode if not in use for awhile but if left for longer periods it goes into sleep mode and will not wake up. I have tried to wake it
- touching mouse
- touching power button
- using windows key + C
- no results unless I do a hard power down
Now it has started to download windows updates without installing them
The best I saved for last...it will not shut down it only goes into Power Save mode
very frustrating...suggestions please?
Windows for home | Previous Windows versions | Performance and system failures
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Anonymous
2014-08-31T17:30:12+00:00 this can't fix the issue when the computer is still in sleep mode. the question is HOW do you take it out of sleep mode?
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Anonymous
2014-08-19T21:41:44+00:00 Thank you
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Anonymous
2014-08-19T16:23:47+00:00 They are saying that the computer's mother boards have one component not compatible with the win 8-8.1 and you should get that updated/fixed from ur own manufacturer . Most of them won't due to out of warranty .... And that junk.
Sorry i I cannot think of the name of it right now but have so in my early early post.
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Anonymous
2014-08-19T13:36:48+00:00 I would like to add to this shut down conversation. Mine is a six year old Vista home premium which I have to completely shut down in order to bring it back from sleep mode or is it safe mode...anyway all I know is when it is working it is great so why does it do this shut down thing on a regular basis. It is raising my anxiety levels because of this behaviour. I am an ordinary oldish person with a great brain which can learn and solve a variety of problems but this really gets to me because my computer doesn't give me a direct answer as to why it is doing this sleep thing unannounced. Microsoft and Community please help us.
Thank You.