Question about Acer Aspire 5100 Notebook

3 Answers

Thanks for helping, murpium and poplock, but...

.. could you kindly show us how to get into ACPI, or safe mode, or restart, or anything else, since the keyb and touchpad are all-dead?
what's the magic key you press to enter start-in-safe-mode?
thank you anyway


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  • fix-the-prob Mar 29, 2008


    this strange acer 5100/3000 series common issue - occurring few days after the warranty went out - has the only fix by replacing mo-bo or (even better) trying elsewhere for the next laptop to buy. I did the 2nd, of course, Sony Vaio here now.
    btw, just to be clearer: no other ext usb keyboard nor mouse "fixed-the-prob" so far and mobo isn't forced anyway to see usb devices.
    that's why I guess it could be a usb ports issue, since my acer stopped to work after I've plugged in an usb device (ipod).
    it could be interesting if some skilled mate of us would try to hard "deactivate" usb and look out for what happens then...

  • stargirl21 May 21, 2008

    heeellllppp!!! i tried the solution that murpium posted (taking out the battery of acer laptop with frozen keyboard and touchpad) which worked fine. i've been using the laptop for about 2 or 3 weeks with no battery in it, without a problem...until today...the same problem happened again without the battery in it so now i don't know what to do!!!! :cry:



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Dear fix-the-prob Unfortunately there is no magic key to enable you to do this. Computers do not have 20 backup systems like airplanes. Which would be nice but it would cost like one too! You have two options though to solve this,

  1. Firstly either change the laptop’s keyboard (which is a bad solution if the keyboard is fine and the problem is actually the motherboard)
  2. Second is to find any USB keyboard (easy these days) plug it in an USB port at the side of the laptop. The bios is forced to see this keyboard instead of the laptop’s.
Regards Please don’t forget to rate this solution if it was helpful, it keeps us going!

Posted on Mar 28, 2008

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In the case of my Acer, this touchpad and keyboard problem was related to ACPI and the battery. In order to get into Windows with your mouse and keyboard fully functional, remove the battery and keep your laptop plugged into the wall. When you get in, everything should be fine (you don't need safe mode for this). Once you're in, go to your Control Panel, go to System. In that pop-up, go to the hardware tab and click Device Manager. In the Device Manager, click the plus sign next to Battery. In there, right click "ACPI-Compliant Battery" or something like that and choose Disable.

Reboot with your battery in place. It should work just fine. Replacing the battery with one from eBay solved the problem on mine. Without ACPI your computer cannot go into standby and doesn't have all those nice power-management features associated with it.

Hope that helps. Your issue might not be ACPI-related. :\

Posted on Apr 27, 2008

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Another suggestion would be to re-plug the cable that connects the keyboard to the motherboard

hope this helps

Posted on Apr 10, 2008

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Posted on Jan 02, 2017

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Posted on Jan 07, 2009

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