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
2013-10-28T22:23:04+00:00 I took two steps that seem to have resolved the problem of my computer not reawakening from sleep mode.
One step that I've taken since my computer needed the hard power down is that I now close all programs except Firefox when I leave the computer alone long enough for it to go into sleep mode.
The other step is based on a suggestion that I saw on another website. What I did is uncheck the option to allow the USB Root hub to "turn off this device to save power."
Here are the steps that I took to do this (in Windows 8):
- Windows Key-X
2)Double click on Device Manager
- Click on the arrow next to Universal Serial Bus Controllers
Towards the bottom I have 2 listings for USB Root Hub and one for USB Root Hub (xHCL)
- Double click on one of them and select the "Power Management" tab.
- Remove the checkmark next to "Allow the computer to turn off this device to save power."
- Do the same to the other two USB Root Hubs.
Note: I also have 3 "Generic" USB Hubs listed toward the top of the Universal Serial Bus Controller section. I don't recall why but I didn't mess with those. I suppose because the instructions that I was following didn't say to.
Since I incorporated both changes at one time I can't say for sure which one (if either) solved the problem but at least in my case I haven't had any problems reawakening my computer since I made the changes. See my October 7th post for my computer's specs.
I hope these steps help others but obviously your computer may be configured differently and your miles may vary.
Good luck
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Anonymous
2013-10-25T17:27:39+00:00 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?
new sony ultrabook i7
win 8.1 pro
Disabled sleep in power settings
still goes to sleep
only way to recover is with full power cycle.
please help
did not happen on surface pro (win 8) or surfacert (win 8.1)
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Anonymous
2013-10-25T13:00:16+00:00 Just manually install your updates daily. The auto-update causes many problems.
Same problem here on new sony vaio pro 13, happening multiple times a day (about 1/2 the time it enters sleep) since a recent bios update
haven't tried windows update changes but maybe I will. planning on sending it in for repair hopefully sony can fix something
anyone else have any other suggestions?
I am having similar model just bought 3 days back and I found the similar issue. I was totally disappointed by seeing this and ultimately could able to rectify the issue by following the steps given in the page 1.
a. Uninstall display drivers and related software from the device manager
b. Do not restart the system
c. Download the base level drivers ( Not updated one in oct'2013)
d. Install the driver from Sony support site and reboot the system
e. Verify whether the driver is set correctly again by going the device manager (Intel HD graphics should be available)
f. Verify the version of driver. It should be 9.18.10.3071. If the version is different reinstall the driver and restart.
g. All set.
Good Luck.
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Anonymous
2013-10-24T15:36:56+00:00 I have had this same issue with my Asus 500T and my Lenovo Helix as well. I am frustrated that Microsoft has not fixed this issue even on a $1500 tablet.