Mouse and keyboard non-responsive when running win7 in dual boot

Posted on 2011-09-14
Last Modified: 2013-12-16
I have a dell stand alone server which I have Server 2008 installed and Win7 . I haven't had any issues with it so far until the other week I found that when I boot in win7 the keyboard and mouse lose connectivity and I cannot do anything. However when I choose Server 2008 they work fine.
I've tried using different mice and keyboards but they all lose power when as soon as the Win7 starts to load.
Any ideas?
I serioualy don't want to have to format my drive for such a small issue.
Question by:nomaadic
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Expert Comment

by:Hugh McCurdy
ID: 36540539
I realize most keyboards and mice are USB, but I should still ask.  Are they USB?  If they are USB, do you have any other USB devices connected?  If so, do they lose power too?  If so, does disconnecting them change how the KB & Mouse work?  If not, could you add another USB device to see if it loses power too?

Another place to look are the drivers.  I doubt it's the drivers but I can't eliminate that it's the drivers with the information presented.

Finally, another long shot - virus scan.

Assisted Solution

nomaadic earned 0 total points
ID: 36542606
I actually used a kb switch last night and it worked although the mouse is extremely erratic.  Will run a virus scan for sure.
LVL 13

Accepted Solution

Hugh McCurdy earned 500 total points
ID: 36542894
USB or PS/2?  If PS/2, try a USB mouse.  If USB, you could try a PS/2 mouse if you can find one.  I know it looks like software and it probably is software but it could be a combination hardware/software issue.  Rare but I've seen it.  

Author Comment

ID: 36542923
Usb... I'll buy a PS/S connection today but I find it strange that it worked before.

I think i'll have to re-install windows
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LVL 13

Expert Comment

by:Hugh McCurdy
ID: 36543234
The only reason behind trying PS/2 is to change the driver.  We'd pretty much have demonstrated it's software (odd as it sounds).

What is strange is the problem sounds typical of hardware but clearly isn't the (only) cause.

Before you reinstall Windows, I suggest looking at the driver.  Rolling back (if that's an option) or downloading an update might fix it.  It's a long shot.  But everything is either a long shot or lots of work (reinstalling).

I wish you luck.  If you figure something out, please post here.  Even if you solve the problem yourself and award 0 points, please post what finally worked so the answer can go in the knowledge base.

Author Comment

ID: 36543293
I'll try the driver but it's strange that it works without issue on server 08 bootup. It's clearly not a hardware issue but i'll try the driver rollback and update in windows 7 tonight and i'll let you know.

Author Closing Comment

ID: 36565435
Partial answer but thanks for the effort.
LVL 13

Expert Comment

by:Hugh McCurdy
ID: 36544064
I wouldn't go as far as clearly not hardware.  The working driver might not be trying to use the portion of the hardware that's broken.

I'll take an example from years ago because it's easier to explain.  I was selling 486's and serial printers.  In MS-DOS the printers worked fine.  But in MS-Xenix the printers were very slow.  The difference is the MS-DOS driver used polling and the MS-Xenix driver used interrupts.  It was a problem with interrupts.  Specifically, it was a problem with how the 486 processor's cache interacted with the interrupts.  

This is a case where it looked like a software problem but it was really a hardware problem.  Around this time, Bill Gates made a public announcement, telling hardware manufacturers that Microsoft knew which ones were cutting corners when making motherboards.  They had 6 months to clean up their act or Microsoft would name names.  Within 6 months, the problem I was having with MS-Xenix went away on new computers.  The version of MS-Xenix hadn't changed.  The hardware design changed (because Bill Gates threatened them).

This story really isn't going to help you much.  Changing the driver actually might help.  

I've actually modified drivers.  One was a Linux driver.  Google hmccurdy and bogomips.  I modified a Cyclades driver to get the card to work with a specific computer that had changed speeds between when the Linux kernel calculated bogomips and the time to use the bogomips for timing delays.  Note: I no longer have that email address.

My point is some strange things happen. Really strange things happen.

In any event, I think you have a good plan.

Author Comment

ID: 36545886
Thanks again for the insight..... Your words are very true indeed!

Looking forward to the next issue hmccurdy..

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