how to disable the trackpad while typing on mbp without mouse ?

Open Universal Access preferences. Under either the Keyboard or Mouse tab should be a checkbox option to prevent accidental input when typing. If you don't find it there then check in the Trackpad preferences.

There is no way to turn the trackpad off. To prevent it from registering any accidental touches, cover it with a thin piece of cardboard. The cardboard from the back of a standard pad of office paper is sufficient.

But do you really want to type without either a mouse or a trackpad? Sounds awfully inconvenient to me.

Are you kidding? This is the number one complaint I have against my Macbook. Windows has had this feature for years. I love the trackpad, and want to keep using it, but when it moves the cursor around while I am typeing (do to inadvertant keypad touches) it makes me want to scream.

Like Kappysaid :

Kappy wrote:

Open Universal Access preferences. Under either the Keyboard or Mouse tab should be a checkbox option to prevent accidental input when typing. If you don't find it there then check in the Trackpad preferences.

or find the apple instructions here http://support.apple.com/kb/HT3608

Good luck

Thanks for the reply and so quickly too, but the link you refer to describes how to disable trackpad when another mouse or keyboard is present. I cannot find a check box for preventing accidental input. The only workaround I have found is to disable single touch on the trackpad. That stops the cursor jump madness when typing, but requires a full press to activate click on the track pad. The windows synaptics driver has had a feature that disabled they trackpad for a user configurable delay after a keyboard key is pressed. I am disappointed that my Macbook does not have this feature.

You can also try going to system preferences>universal Access, mouse and trackpad tab, checking ingore built-in track pad when mouse keys are on, everything will need to be done via keyboard. To engage/defeat this you need to press the option key 5 times.

Don't really know if this is what you are looking for.

Sorry farmerJack i miss read the bit in your post that says "without mouse".. My workaround for this is like you mentioned, where the trackpad is set up so I have to press firmly on the track pad to click, always is as it drives me bonkers having a sensitive trackpad that you can bump easily. Sorry but that is my best sloution.

Good luck

It worked!

his is useful, thanks a bunch.

This does not appear to be possible with OS Sierra. It looks to me like the option is gone.

I can't figure it out, either. 😟