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Windows 7: Win7 freezes when coming out of turned off display

23 Sep 2010   #1

Windows 7 Ultimate x64
Win7 freezes when coming out of turned off display

We've had two HP dv8t Pavillions for two days. What was an intermittent problem now happens with regularity on BOTH machines: When coming up from a turned off screen, the display comes up fine, but the mouse and all keys freeze. At first I found that if I use the function keys to pull up a browser, after 1-2 minutes the browser came up and the display was no longer frozen. After the first few times I set the Power Options to High Performance so that Sleep is set to Never (since I suspected this might be the problem -- but not true). The machine is still working: Acronis nightly backups are working fine. The display is not responding.

My antivirus is MSE -- I uninstalled Norton as soon as the machines arrived, and followed up with CCleaner to be sure the registry was clean. I upgraded the Home Premium to Ultimate.

I called HP and that support tech said he had heard that hard drives could be bad. I have one 128GB SSD and one 320GB Sata-HD, with an i7-720 chip, in each machine. I ran the HP diagnostics out of the Bios for 1.5 hrs, and all tests were PASSED.

I called Costco tech support, since I bought the machine through them. Now I know some of them wear aluminum hats -- one told me to avoid all SSD since microwave ovens nearby have been known to erase them completely. However, I did want to know if they had any experience with such problems. The fellow I reached this time said that he seen this on several brands of notebooks, and he thinks it is a Windows 7 problem -- so I'm posting this here.




As I see in quite a few postings, this is very common problem. I think I have found a solution, at least for our machines. Our C drives are SSD, so I do not have to worry about them spinning all the time. In any case, even our 10-year old Thinkpads slow down the drives after some period of non-interactive use.

I also saw a posting someone suspected that graphics CPU was stopped if power options were set. Perhaps this occurs when the hard drive is stopped?

In any case, I went to Power Options and created my own Custom Plan, using the High Performance Plan as a template. Under Change advanced power settings -> Hard disk -> Turn off hard drive after -> Plugged in, I set the time to Never .

So far, the display has not frozen after long idle periods. As always, "past performance is not an accurate indicator of future performance"!


My System SpecsSystem Spec
24 Sep 2010   #2

Windows 7 Ultimate x64

Well, the past is not the future: The problem has come back. I am now putting in Never for all plugin options. It will be interesting to see what happens, to see if I will keep this machine.
My System SpecsSystem Spec

 Win7 freezes when coming out of turned off display

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