Hey guys,
I have been dealing with this issue for a long time. I finally got frustrated enough to take the time out of an already hectic schedule of programming work, school work, relocating jobs, and relocating our family, to call AppleCare to see if they could offer any insight that I have thus far failed to find via Google and standard troubleshooting. It's just very frustrating, a huge waste of productivity, and a feature that I've seen in every OS and every laptop I've ever used as long as I can remember.
According to this Apple Support article, the option was removed from OS X. While it's supposed to be enabled by default, apparently somewhere down the line it messed up again. Since the one common theme among the complaints that I've seen is that they all have the newer force touch trackpad, there may be a correlation there.
The "Ignore accidental trackpad input" trackpad option no longer appears in System Preferences. Functionality for "Ignore accidental trackpad input" is enabled automatically, by default for these computers.
I have a MacBook Pro (Retina, 15-inch, Mid 2015).
It's upgraded to the latest version of Max OS X released (at least the latest version right this minute), which is OS X El Capitan, 10.11.3.
AppleCare was very sympathetic to my issue and at first asked me to change the System Preferences > Trackpad > Click option from Medium (the default) to Firm and reboot. This had no effect on the issue. At no point did they ask me to reinstall, take it in for service, etc. They then put me on hold while they spoke with an engineer and their product team.
When they got back on the phone with me, they said that this is a known issue, there is no known solution, and offered me some workarounds. Here is a list of workarounds they offered, or that I've seen in this and other threads:
- Disable System Preferences > Trackpad > Tap to click. (This is the only workaround that makes sense, since it's the culprit, but it also means you lose the feature that you probably enabled because you wanted it. AKA: It's too buggy to use.)
- Enable System Preferences > Accessibility > Mouse & Trackpad > Enable Mouse Keys and Options... > Press the Option key five times to toggle Mouse Keys. (This option seems like a huge hindrance and I would never resort to such measures, ridiculous!)
- Enable System Preferences > Accessibility > Mouse & Trackpad > Ignore built-in trackpad when mouse or wireless trackpad is present. (Great workaround if you're not on a laptop, however... then you don't have a large trackpad sitting underneath the keyboard and it's not an issue to begin with.)
- Use alternative drivers or see if there is an option in the program to disable accidental input while typing. (This is an OS feature, so this suggestion was a long shot and not an option as there are no alternative drivers for Mac OS X that I know of, nor any options in any of the software I use to accomplish this, let alone system-wide).
To those wondering: I also use Better Touch Tool and have for a long time. I am on version 1.56 (471) (also the latest version right this minute). This software neither causes the issue nor fixes it.
There is no known solution that I nor AppleCare could find. I have submitted an Apple Feedback for the Macbook Pro as a Bug Report and referencing this thread. While I don't expect to hear anything back, I can only hope this issue is eventually resolved!