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I have the MBP 15" model 2017 (macOS High Sierra 10.13.3) with touch bar. What I realized is that the touch bar volume element (mute / unmute / volume up / down) does not work. I press them but nothing happens.

On my apple external keyboard these shortcuts work fine. Also when I try to adjust the volume with the touch bar slider it works like it should.

I tried different things, resetting nvram, removing / adding the controls, killing the control strip, killing the coreaudiod, resetted SMC. but nothing seems to fix it. The only thing that worked is opening a new user account. In the new user account everything seems to be working fine.

Any ideas of what the problem might be or how it can be fixed?

  • I may have similar issue. Does this happen all the time or seemingly random? – JBis May 24 '18 at 0:32
  • Hello @Josh. It happened all the time. – Cobra Kai Dojo May 25 '18 at 11:06
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Seems to be a bug that shows if you plug an external display, etc.

Open Terminal.app and type:

killall ControlStrip
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For anyone who might have the same problem, it seems to be a weird bug on High Sierra at least.

When the "slow keys" are enabled (system preferences -> accesibility -> keyboard) the volume controls (maybe other control keys too?) on the touchbar do not work.

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I have the same issue as the the OP, and haven't found a fix But thank you Cobra Kai Dojo for identifying the link between slow keys and the malfunctioning volume control! At least now I have control back :) Haven't noticed other TouchBar keys not working with slow keys turned on though.

However, I did notice that typing in general got a lot less predictable with slow keys turned on (randomly dropped characters), and esp Apple & Option keys were just not working on first try (for keyboard shortcuts). I've turned off slow keys, and now it's back to behaving - for now.

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What fixed it for me was to uncheck Enable Touch Bar Zoom in System --> Accessibility --> Zoom. I had inadvertently checked it when I was making some other changes.

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Not to be rude but did you google this?

Did you by any chance reset SMC? https://discussions.apple.com/thread/7785100

When did it start happening?

Software update?

Migration?

Restore from backup?

Do you have 2017 or 2016, 13" or 15"

You could just move all your data to a new user account.

  • 1
    I have updated my question. Yes I've tried resetting the SMC without any luck. I am with the latest software update. Tbh I haven't done anything special that could cause this problem... or at least nothing comes up in my mind... – Cobra Kai Dojo Feb 26 '18 at 14:59
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The problem is the MAC thinks the external monitors have a speaker when they don't.

Goto System Preferences -> Sound -> Check "Show Volume in the menu bar".

Then from the Volume Bar in the menu bar change the "Output" back to "MacBook Pro Speakers"

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