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MBP problems with trackpad while charging

Hey guys,

So this is my problem. My 4 month old Macbook Pro 13", early 2011 has problems with its trackpad everytime i'm charging it. So whenever the charger is connected to my macbook, the trackpad doesn't do what it's supposed to do, it's really slow and clicks on things i didn't chose. When I#m disconnecting my charger, everything just works just fine. Is there anyone having the same problem? i really don't know what to do, i have to study with it everyday for my graduation. this is why i can't send it to apple to have it fixed there. any solutions?
thanks a lot
friddi

What watage power adapter are you using?

How long after you plug the laptop in do you mess with the trackpad?

60W MacSafe Power Adapter it happens with both the long and the short cable.
It doesn't stop until i disconnect the charger from my laptop...

Do you have another power adapter to try? If so, can you use the power adapter that came with this mac?

Do you have another MBP? If so can you use this power adapter on that MBP?

Are you using another pointing device or is it the one built right into the laptop? If you are using another pointing device try purchasing a new one or disconnecting or reconnecting or even try on another computer.

You might be only able to get buy for the next few month until you graduate until you can get your computer fixed. If all else fails go buy yourself a $8 mouse from a place, it will work until you can get this fixed... or buy apple mice if that is a big deal to you.

Here is one for only 3.18! https://www.bestbuy.com/site/Gear+Head-Computer+-+OM3800U+Mouse/3933383.p?id=1218 443155891&skuId=3933383

Or if you want the one I have used: (M515 @ home or HP Wired Mouse-- Its kind of old) This isn't the exact one but they discontinued that one: https://www.logitech.com/en-us/mice-pointers/mice/devices/mouse-m100 so for $10 you get a mouse and your computer works.

no, i don't have another power adapter to try, it's the one that came with my MBP. And I also don't have another MBP. If I plug in a mighty mouse, it works, but I actually hate using it, I really prefer the trackpad.
thanks for your help and your time though
do you have any other advice? i really don't know what to do  and i think that I'm killing my battery if I keep on connecting and disconnecting it all the time :-/

Its not bad to charge and unplug your computer but its not the best. Do you charge it while your at work and sleeping? If you do that you should have 6-7 hours of power after a complete charge.

It doesn't hurt your power port, it might not be the best for the battery, but its fine.

I would say just use the mouse, or if you have to have a trackpad, then buy the apple trackpad: https://www.apple.com/magictrackpad/.

I am having the same exact problem with my one month old macbook pro i tried using a different charger the one that came with my old macbook pro and it was the same thing the trackpad kept lagging and being unrensposive/ acting eratic while the charger was plugged in but immediately i unplugged it . it worked perfectly fine. im thinking of taking it to the apple store as i just bought this mac hope it dosent mean a bigger problem i did some research online and battery swelling was linked to eratic trackpad behaviour so maybe the trackpad not working well while its charged might be a problem with the battery anyways i think you should get it looked at as im taking mine to the apple store today.

Get another charger. I think your charger is malfunctioning.

These chargers are so-called SMPS'es (switched-mode power supplies). There are big advantages to using this method, they're small and efficient. However if malfunctioning, they can introduce noise which influences your trackpad.

Wikipedia:

They are, however, more complicated, their switching currents can cause electrical noise problems if not carefully suppressed

Well, I also thought of just taking it to the apple store to get it fixed there. but unfortunately i need my macbook everyday for studying for my graduation :/
i already went to the store to ask them but they had no idea.
so what did they tell you at the store? i hope i can get it fixed soon, it's really annoying to have to stop working as soon as the battery gets low.

Go to an Apple store and plug your Mac into one of their chargers.

I am having this exact same problem and have tried 4-5 other chargers, to no avail.

Other than this issue, I've been very pleased with my MBP--this problem, however, is quite annoying.

Any additional suggestions would be appreciated.

It might not be the super-best solution, but I noticed that when I rest the palm of my hand (the one I use to operate the trackpad) on the side of the trackpad. Don't know the science of it, but it must balance out the electricity somehow

I forgot to say that the pad goes back to normal then

Hey guys! My problem became even more weird!

I've got MBP 13" early 2011, the issues are the same, but with one minor exception.

If I plug in the T-connector charger from mid 2009macbook white ... the trackpad simply works like charm.

Isn't it crazy?

I didn't try with any other MBP charger, but what's the difference between old T connector and the new one?? It can't be just the connector, right?

Ofcourse when using my new charger (it has beed used 2 times since now), trackpad goes wild, but placing my hand on the topcase solves the problem. It's crazy. I don't know what to do, I'm just about selling my white Macbook, but what with the charger? Stay with the old one and sell my brand new one like for free or stay with it and wait for the solution.

I've noticed one severe thing - when I go to the system raport (about the specification and connected stuff) in charger section it shows 85W charger, but on the charger there's written 60W ?! In case when I use my old one, it shows 60W - as it should. What do you think about it?

Did you try to check if the charger is recognized by your MBP propertly?

Facing similar issue. How do i solve it...

最後更新：2017-09-14 04:20:51

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