The trackpad and keyboard stopped working on my MacBook Air about half a year ago. After several frustrating hours of trying to fix it I gave up and put it in a corner where I didn't have to see it. Until now when i suddenly kind of need it again.
I wrote a long post describing everything but that disappeared due to a bad internet connection so here is the story in short.
I was running El Capitain, keyboard and trackpad stopped working outside the login screen. For logging in they both worked perfectly. I reinstalled the OS which didn't fix anything. Gave up.
A couple of days ago: decided to try again. Updated to newest OS, still didn't work. Made a fresh install och the oldest possible OS I could (Yosemite), didn't work.
Searched the internet and found the solution to delete .plist files under library/preferences. THIS DID WORK!!! For a couple of hours until it stopped working again. Updated to latest OS and tried deleting the .plist files again (all except one which was needed to run the OS so it wouldn't let me). Again it worked for a couple of hours.
Does anyone know of a permanent fix to this problem? Always carrying a keyboard and a mouse with kind of defeats the purpose of having a small computer.
I know some people changed the keyboard an trackpad but changing hardware to fix a software problem seems to me like a stupid and expensive solution.
Is there any way of permanently changing the .plist files or perhaps replace them in a way that the computer doesn't again switch them for bad files? It's a completely fresh install with no new apps other then the ones from apple installed so I doubt apps are the problem.
I wrote a long post describing everything but that disappeared due to a bad internet connection so here is the story in short.
I was running El Capitain, keyboard and trackpad stopped working outside the login screen. For logging in they both worked perfectly. I reinstalled the OS which didn't fix anything. Gave up.
A couple of days ago: decided to try again. Updated to newest OS, still didn't work. Made a fresh install och the oldest possible OS I could (Yosemite), didn't work.
Searched the internet and found the solution to delete .plist files under library/preferences. THIS DID WORK!!! For a couple of hours until it stopped working again. Updated to latest OS and tried deleting the .plist files again (all except one which was needed to run the OS so it wouldn't let me). Again it worked for a couple of hours.
Does anyone know of a permanent fix to this problem? Always carrying a keyboard and a mouse with kind of defeats the purpose of having a small computer.
I know some people changed the keyboard an trackpad but changing hardware to fix a software problem seems to me like a stupid and expensive solution.
Is there any way of permanently changing the .plist files or perhaps replace them in a way that the computer doesn't again switch them for bad files? It's a completely fresh install with no new apps other then the ones from apple installed so I doubt apps are the problem.
