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9259
July 11th, 2011 17:00
Keyboard and Mouse randomly quit working
About every two-three days my mouse and keyboard stop working. At first I thought the machine was locking up. When I press the power button momentarily, my screens will come out of the sleep mode yet I do not have any control with either keyboard or mouse. However, I found that I could still control the PC remotely and the remote keyboards and mice work fine. When looking at the USB hubs under Device Manager remotely during these freezes, they show that the devices are working normally. When I switch tabs from "General" the Device Manager window freezes. After a Windows Restart, the problem goes away for a day or two. Also when I try to restart the PC from a remote connection during one of these freezes, the machine will stay on the screen "Windows is shutting down" indefinitely.
System Specs: Windows 7 Home Premium 64-bit SP-1; Dell Studio XPS 8100, Intel i7 2.93 GHz
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RoHe
12 Elder
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45.2K Posts
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July 11th, 2011 17:00
Look at the Power Mangement tab for each USB root hub in Device Manager and uncheck the box "allow pc to turn off this device", or wherever Win7 handles that.
Scanned for malware recently?
You may need to run a Win 7 repair.
Ron
TOT 99
4 Posts
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July 12th, 2011 08:00
Several weeks ago I unchecked those boxes under all Generic USB Hub and USB Root Hub entries. Unfortunately the problem remains. I also perform weekly scans for viruses and malware.
Mary G
6 Operator
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20.1K Posts
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July 12th, 2011 09:00
You must make sure the power management for both the mouse and keyboard have "allow this device to wake computer" checked. You should not have disabled or changed anything in USB hub. Go back and recheck "Allow windows to turn this off to save power." That allows windows to wake sleeping devices.
TOT 99
4 Posts
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July 12th, 2011 13:00
Both the keyboard and mouse have the box checked that will "allow this device to wake computer" and to the best of my knowledge this has never changed. When I go back and recheck the "Allow windows to turn this off to save power", I am back to my original settings which disagrees with a previous post. Not a problem except that the same symptoms surface both ways. I will do as you say and see if things change but it will probably be a couple of days before I know if it worked. Did I mention that the problem surfaced back in October of 2010 after 16 critical patches were pushed down from Microsoft Update?
muto
2 Intern
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872 Posts
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July 21st, 2011 08:00
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TOT 99
4 Posts
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July 21st, 2011 08:00
They continue to lockup under this configuration. I can remotely access the PC after the lockup, but all USB ports are effectively dead. They do not recognize any device being plugged in or unplugged when the lockup occurs.