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Laptop keyboard malfunction

Discussion in 'Hardware' started by deadbeat2k, Feb 1, 2006.

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  1. deadbeat2k

    deadbeat2k Thread Starter

    Joined:
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    I posted something similar a while ago, but after various experiments I have found no solution.

    I have a Dell laptop (Win XP, desktop processor in laptop casing so potential heat problems), and it’s been fine on and off for three years, but recently the keyboard started malfunctioning. The symptoms are as follows:

    a) The system works normally for a variable amount of time (c. 30-60 mins).

    b) At this point, the keyboard stops functioning, except for the vowels, which appear with acute accents (á, é, í, etc.). Using Ctrl+Alt+Del to launch Task Manager still seems to work as well. The non-functioning of keys extends to the Command Prompt.

    c) This is accompanied by other Windows problems: double-clicking on desktop icons only launches their properties boxes; it becomes impossible to highlight text in MS Word or navigate between windows on the taskbar.

    d) Sometimes, after a further period of time, not even the vowels produce a response, and pressing any key results in a system alert ‘ding’ sound. Curiously, if the Command Prompt is launched at this point, all keys except the space bar work normally within it, but not in Windows.

    e) Restarting the machine will usually relieve the problem for a short time, but it soon resurfaces.​
    I am not sure whether this is a hardware or a software problem. I suspect it might be the latter because the problem still occurs when I use either an external keyboard or the Windows on-screen keyboard, and I have also tried cleaning the laptop and reconnecting its internal keyboard. Also, this doesn't appear to be anything to do with a virus or spyware. I would be grateful for any further suggestions!
     
  2. Lurker1

    Lurker1

    Joined:
    Jan 30, 2001
    Messages:
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    Try running the computer in safe mode and see if the problem occurs there after 60 minutes. If not then you probably have a software problem. Do you have the original load disk? A system reload may the the fastest way to fix this. You can restart in safe mode after you get the problem.
     
  3. deadbeat2k

    deadbeat2k Thread Starter

    Joined:
    Jan 17, 2006
    Messages:
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    I forgot to mention that I tried using Safe Mode but the problem still occurred.
     
  4. Lurker1

    Lurker1

    Joined:
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    Well I dont know, but if you called Dell I'm sure that they would recomend a full system reload (operating system and programs). So you can give that a try. If you have the diagnostic cd that came with several Dell laptops you can run that for a while and see if anything shows up. Do the fans seem to be running OK? You can also try blowing some canned air into the fan exhaust ports just to clean out the unit.
     
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