Touch Bar on a Macbook Pro (16", 2019) takes control, goes crazy.

XmonikerX wrote:

Has anyone else experienced the Touch Bar on a Macbook Pro (16", 2019) going crazy?

Mine just started adjusting the brightness on its own, along with turning the volume on and off and controlling music.(including opening the app). At a very rapid rate.

This then progressed to opening up random apps. and doing random things within the open apps.

It's totally random, when It will decide to go nutty.

I took it to the Genius Bar, and everything of course worked perfectly that afternoon. But they tested everything etc. and came back clean.

Is it just possible to disconnect the Touchbar totally from the motherboard?

Would this solve the issue.

As the cost for replacement is ridiculous.

Thanks

No you can not "disconnect the Touchbar totally from the motherboard? "

On the intel Mac you can try both:

Try resetting the System Management Controller Reset the SMC of your Mac - Apple Support

Try resetting NVRAM/PRAM Reset NVRAM on your Mac - Apple Support

Even though SMC controls the touchbar, the T2 Controller is responsible for TouchID as well, so some USB is in play,

this would be NVRAM (or reboot.) notice:

USB Device: Apple T2 Bus

USB Device: Touch Bar Backlight

USB Device: Touch Bar Display

USB Device: Apple T2 Controller

No resolve—

run the user Diagnostic...not as definitive as Apple's own AST2 (Apple Service Toolkit) back bench diagnostic, but may kick out an error code.

Use Apple Diagnostics to test your Mac

Use Apple Diagnostics to test your Mac - Apple Support

XmonikerX wrote:

Yeah the Apple tech. ran all the Diagnostics on it, when I took it in.

And everything came back fine.

I guess I try and live with in spurts now, when It does want to run.

<re: Macbook Pro (16", 2019 > Intel w/T2 chip

hello—

Obviously everything is not fine. It seems a poor report if they did nothing for you.

Did the above recommended resets sort it ( you did not speak to the results there...) ?

At the least you can re-install the macOS on top of the existing macOS for a refreshed copy of the OS

How to reinstall macOS.

Recovery (both M1/M2/M3/M4 and Intel) — How to reinstall macOS - Apple Support

no resolve—

Then I would try the Revive firmware feature, if still no resolve do the Restore.

ref: How to revive or restore Mac firmware - Apple Support

How to revive or restore Mac firmware - Apple Support

The restore will wipe all data — so verify you have a full backups.

if you need help with the configurator take it in for assistance .