Q: TrackPad physical click not working after upgrade to Mountain Lion
Does anybody know how to get my trackpad working again after upgrading to Mountain Lion?
I recently upgraded my MacBook (13-inch, Late 2009, Intel Core 2 Duo) from Snow Leopard to Mountain Lion. Everything seems to have gone well, except for trackpad behavior.
The primary problem is that the physical click of the trackpad is now erratic. Sometimes a physical click will work, and other times it will not work.
Note: The "tapping" of the trackpad DOES work consistently. I have confirmed that System Prefs > Trackpad > "Tap to Click" is enabled, and so tapping is not the problem. (The "tap to click" selector does exhibit a unique behavior however--if I DESELECT "tap to click," then the physical click no longer works at all. It looks like the "tap to click" selector can completely disable the physical click of the trackpad, but cannot enable the physical click completely.)
I have also checked the settings on System Prefs > Accessibility > Mouse & Trackpad, but none of those settings affect the physical click of the trackpad.
I tried zapping the PRAM, but that did not change the problem with physical clicking on the trackpad.
Grateful for any ideas...
Nertz
MacBook (13-inch Late 2009), OS X Mountain Lion
Posted on Jul 27, 2012 8:49 AM
I ended up taking my MacBook to the Apple Genius Bar. The staff were very helpful.
The apple staff said that there is no known link between the upgrade to Mountain Lion and trackpad misbehavior. In my case, they made some hardware adjustments to the trackpad, and all is working properly again.
Bottom line: if you think that your trackpad misbehavior is related to Mountain Lion, you might want to take it to an Apple Genius Bar. If there really is no connection between Mountain Lion and trackpad behavior, then perhaps they can fix it for you (as happened to be true in my case). But if there IS a connection in some way, it would be helpful for Apple employees to see your evidence firsthand.
Best wishes to all...
Nertz
Posted on Jul 30, 2012 8:20 PM