Left-click not working on trackpad or mouse

Good catch, JoeHave. I had the exact same issue and glad I came across your post. I moved my wireless trackpad into my cabinet (as part of my monthly desk clean-up) a week ago and shortly after, found that my left click on my iMac stopped working. Thinking it was a problem with my mouse, I got another and connected it - to no avail. After I read your post, I went back into the cabinet and removed the batteries on the trackpad and the left-click started working again! Thank you!

I had the same problem with an USB mouse, the problem was that I had my headphones plugged into the computer. The moment I pulled it out everything came back to normal.

@JoeHave - yep, that was it for me too. An old trackpad in a drawer nearby was doing it.

I was having the exact same problem didn't believe the answer could be that simple!!

I just checked my backpack and YES there was an extra mouse in there that was on!

So anyone that reads this.. check for all devices on wifi and bluetooth and turn anything off you don't need. Leaving the house is a good idea but due to the backpack I was carrying that with me anyways to work and back home. So check your desk, check your connected devices and check your bags!

DOH! I have been dealing with this for weeks. I though it was a software problem. My left click suddenly stopped when I closed my laptop or when it went to sleep. I have also had a ton of problems with wifi and my bluetooth devices not working. I think it all might be related. Such a simple solution for a weird problem.

OMG, I use the included Magic Mouse with my computer, but I take it to work with me to use it on my MacBook Pro. When I come home, I discovered that it was connecting to my iMac BY DEFAULT... hence... THE BUTTON WAS BEING PUSHED DOWN IN MY BAG!!! Check your house and your bags to see if there are other mice that were left on like mine.

I went through updates, reboots, forced OS X reinstalls, and then found this out on a hunch. Check your mice!!!

Me 2!! I just read this after I solved the problem. Thanks for the post.

This was my exact problem. I had an external trackpad with a book sitting on top of it.

Did you do a PRAM reset?

Resetting your Mac's PRAM and NVRAM

Guys just FYI this happened to us and we didn't have a clue what it was. Until we found a trackpad which was left on! It was stopping our mice from working, so keep an eye for any other trackpads or mouse around the house that have been left on, in a bag or something. It was holding down the left click.

Wow, this may have solved my problem – similar symptoms to everyone here.

I have a magic trackpad that was in my backpack and found this was live.

I've taken this out to ensure its working and see the click buttons now work on my mouse, trackpad and magic trackpad all on my MacBookPro!

😁

Same problem but JoeHave got me sorted. THANKS! Im using a windows style bluetooth mouse on a 27 imac and it kept playing up, sometimes the left click would stop completely and no amount of restarting etc would fix. Saw Joe's post and I remembered I had the original Apple Magic Mouse that came with the iMac now paired and used with my MacBook Air. Even though its paired with another device, turning off the unused Magic Mouse fixed the problem with the new mouse on the iMac! 😁

this is exactly what happened to me today. Cleaned the desk last night mac worked fine yesterday, ofay no left click from touchpad or external mouse. Looking for diagnostics all day long I read this and immeditely start searching for my computer bag holding the wireless Apple mouse low and behold it was on and homding the button down under a stack of papers. Life saver cant believe that could happen. Watchout where the kiddos start stacking the school work when they bring it home

HI Joe, thank you so much! Spent over an hour on phone to AppleCare. Diagnosed as hardware issue because problem occurred in Recovery mode etc. Did PRAM/SMC. Senior Advisor totally bemused. Booked MBP in for repair. Then at bedtime found this article. Checked my Bluetooth Trackpad (rarely used) and found item resting on it!!!

Removed item and problem solved. THANK YOU.

Regards

chris

Oh gosh, did exact same thing 😀