Keyboard and trackpad doesn't work - in a weird way!

All of a sudden, while browsing, my trackpad started to act as if I was right-clicking. And when two-finger scrolling it zooms.
When using the keyboard I get error sound and otherwise no reponse.
I have tried to plug in an external mouse, and it behaves exactly the same way as the trackpad, including the zooming instead of scrolling.
I haven t tried ext keyboard yet.
I have restarted several times. Cannot get into the machine since I cannot enter the code because of the keyboard error. Although At one point that part suddently worked, and I was in. But the problems are still the same. Right now I am back to not being able to enter my entry code.
Very strange I think. Anyone experienced this?

Make sure your trackpad is clean and no keys are sticking. Restart doing a
PRAM RESET
Zap the PRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

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Choose the method for:
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Keyboard and trackpad does not work.

Hey guys~
I have the late 2009 Unibody Macbook Pro and just yesterday both my keyboard and trackpad have stopped working. I was wondering if anyone else has experienced this and know of a solution. I made upgrades to the macbook (added more memory and a better HD) but that was back 9 months ago. Ive tried reseting the PRAM but I can't because the keyboard just doesnt work at all. I had to run out and buy a temporary external keyboard to plug into the USB. Any help would be appreciated. Thanks in advance!

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Ciao.

Keyboard and trackpad have stopped working

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My girlfriend and I have 3 yr old MBP's and her keyboard and trackpad have stopped working. She can plug in an external USB mouse and it moves around, but she can't type her password into the log in. hence she's stuck.
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MacBook suddenly turns off at 40% of battery charge and trackpad doesn't work

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Additional data that may be useful:
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EFI boot ROM version: MB71.0039.B0E
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[SOLVED]Keyboard and touchpad doesn't work after reboot from Arch

Excuse me, but i'm a newbie. I'm not sure if this is an arch problem, but i will just post it here.
I've beening using Arch64 and it works just fine. However, every time i reboot from arch into Windows 7 (32bit), the keyboard and touchpad will stop responding just when the Win7 splash screen shows, however the mouse works fine. Then when you shutdown the computer (from win7 now) it will take apparently longer time, and sometimes i have to press the power key 5 seconds to make it shutdown.
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Last edited by crlf0710 (2011-11-15 10:29:38)

Hi!
That is indeed strange. Since your external mouse works fine (which probably is connected via USB, right?) it appears that the problem lies somewhere around the internal keyboard/touchpad access. I'm not sure how this works with a Lenovo Y450, but just try to enter BIOS (in case you have not been there, you probably have to hit F1 or F2 during startup - less likely it would be delete or escape ...) and look for your keyboard/touchpad options.
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good luck

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