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KeepItSimpleStupid
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LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 12:49 AM

Givens: Toshiba Laptop, Win 7 Pro, Keyboard has been replaced

  1. The LEFT-SHIFT key sometimes gets interpreted as a CONTROL modifier.
  2. 99% of the time I use Firefox as a browser.
  3. Very rarely (a few times a day), a LEFT SHIFT is interpreted as a CONTROL modifier. As I type away in Firefox, I might bookmark a page, bring up the Bookmarks Menu or if I happen to hit an "R", refresh the page.
  4. Certain websites can recover from that error, most will not. ("Restore Saved Content)
  5. Disabling Filter Keys reduces the frequency of occurrence.
  6. A RIGHT SHIFT will never cause the issue.
  7. The Keyboard has been replaced. It does not seem like a Keyboard Problem.
  8. Workaround: Always use the RIGHT SHIFT key when typing an R.
  9. Temporary Fix: Hit the LEFT SHIFT key twice about 1 second apart. VERY PUZZLING. It must have the delay and must be 2x.
  10. I THINK it happens in other browsers such as Chrome, Safari and IE - not sure.
  11. I THINK it can happen in other programs such as Excel - not sure.
  12. I Have not tried an external keyboard.
  13. The LEFT CONTRL and SHIFT are next each other.
  14. Internet searches for the issue exist with no solution.
  15. The searches indicate that it has occurred in other Windows Versions as well.

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Pathfinder Tags: LEFT SHIFT CONTROL WINDOWS
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Doorman
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#1

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 11:06 AM

Please advise the diameter of the tip of your left digitus V manus (pinky finger).

I mean, let's keep it simple...

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KeepItSimpleStupid
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#2
In reply to #1

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 11:23 AM

0.530" across finger compared to the 0.595" height of the keys or 89.0% of the height. Diameter of the finger would not be a useful number here.

The shift key is 1.535" long and the controlkey 0.975". They are left aligned and 0.159" apart.

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Doorman
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#3
In reply to #2

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 11:40 AM

The diameter of the finger is a useful number here (for me) as an element of feigned stupidity. But, maybe not so much.

Hmmmm. Have you tried to remap the shift key, then map back again? I have no idea what else to suggest.

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KeepItSimpleStupid
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#4

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 12:29 PM

I don't know how to map the shift key?

Someone mentioned a hardware scan - Don't know what that is either.

I have a post here: http://answers.microsoft.com/en-us/windows/forum/windows_7-performance/windows-behaves-as-if-the-left-shift-key-is-stuck/a1998e68-6e9a-407b-8394-f2022aed6536
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Doorman
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#5
In reply to #4

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/14/2012 1:09 PM

Check some of these for how to map your keyboard.

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markar
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#6

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/15/2012 7:39 AM

This is an interesting situation ........... I use anywhere from 4 to 6 different (supposedly identical) computers in the course of the day and they all have slightly different "personalities" / configurations that are hard to nail down. We have 12 different PC's in our department and have all but stopped bothering IT with our issues. You appear to be articulate so it should be assumed this isn't a case of sloppy keyboarding. Does restarting the computer make this go away? If so it may be the BIOS.

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geekish
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#7

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/17/2012 8:38 PM

I would look closely at the ribbon connector to the keyboard. The thing has very tiny separation between the conductors, and in the replacing the KB ends of the conductors can get too compressed if there 2 attempts to insert the ribbon end in the connector.

I had this problem in replacing a MOBO on my Thinkpad, finally trimmed a mm off the end of one of the ribbons and now works fine.

Others have suggested that ungrounded bodyparts touching ANYTHING can fry the FET junctions with static voltages . so that could have happened too when the keypad was naked before installation, maybe.
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KeepItSimpleStupid
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#8

Re: LEFT-SHIFT Sometimes Interpreted as a CONTROL Modifier

12/18/2012 1:40 AM

it's not sloppy keyboarding. When it starts, it usually continues. i.e. Carefully hitting a capital R might cause the webpage to say "Do you wish to move away from this page"? which is a direct indication it was interpreted as a control. This will happen basically forever, until you unstick it as defined below.

Just hitting two LEFT shifts about a second apart, will make it go away.

That can't be a ribbon cable. Replacing the keyboard with a new keyboard didn't fix it either.
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Doorman (3); geekish (1); KeepItSimpleStupid (3); markar (1)

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