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I'm on a new 2019 MacBook pro 13”. The TouchID fingerprint sensor is working. But my touch bar has gone completely blank. I tried restarting my MacBook Pro but it did not help.

enter image description here

I've also done a factory reset, SMC, NVRAM/PRAM and an Apple diagnostics, hoping to fix the problem but it did not work.

After re-install macOs, I was able to see touch bar configuration on System Preferences -> Keyboard menu:

enter image description here

I am not able to see touch bar option and it is completely dark black.

I tried resetting the touchbar through the terminal by using the below syntax:

  • sudo pkill “TouchBarServer”
  • sudo pkill "Touch Bar Agent"
  • sudo pkill ControlStripAgent

I have tried to verify whether they are running by using below command and could not find any process running.

  • ps -A | grep -i "touch bar agent"
  • ps -A | grep -i "controlstrip”

I can see the control strip and touch bar server is running in activity monitor:

enter image description here

enter image description here

I could see this is a common issues across mac book pro and customer don’t have any proper fix for it.

  • Is it blank when you boot into the Recovery OS? It should show a "esc" button. If not, did you try to boot into Apple Hardware Test? What are the results? – Joy Jin Apr 27 at 12:14
  • How new is the MBP? – Jash Jacob Apr 27 at 15:43
  • @JoyJin, can you please guide me with steps or links which will help me to Apple Hardware Test. – prav Apr 27 at 16:36
  • In addition to above, I am wondering why Touch Bar agent is not running on my Mac. It would be helpful, if you can help to start running "Touch Bar Agent Process". – prav Apr 27 at 16:49
  • @JashJacob, I bought this MacBookPro in Dec'2019. – prav Apr 27 at 16:51
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Your Touch Bar has failed and you need to have it serviced.

The TouchID fingerprint sensor is working. But my touch bar has gone completely blank.

This very statement has come up a lot, even here on Ask Different. The touch bar and the fingerprint sensor are two completely different things - a very thin display and a fingerprint sensor - covered by a single pane of glass. It’s a very common misconception to believe that the whole thing must be working because the fingerprint sensor is functional.

Think of the Touch Bar as a display, not unlike the display on an iPhone with the fingerprint sensor (i.e. iPhone 7+). Many times the LCD would malfunction in someway, but you were still able to unlock it with the fingerprint reader. The same thing is happening here.

You’ve done all the proper steps to diagnose it, but unfortunately, you’ve arrived at the only conclusion left - it’s dead.

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I have the same problem except I dont have any config on system preferance. enter image description here

And there is no Control strip service running anytime. enter image description here

Any help to service this as I live in a country where there is no apple support.

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  • Any luck with this? I also live in a country without Apple support and it sucks how nothing can be done about this. – Shahraiz T. Nov 8 at 12:57
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    No bro... This guy has the solution but I am not good enough to follow his solution. blog.eriknicolasgomez.com/2016/11/27/… – Kazi Upal Nov 9 at 13:19
  • I did some digging into my logs and what my novice eyes could see is the domain that response to the request is some what unavailable That's why the firmware cant heal. So only way is the offline way. – Kazi Upal Nov 9 at 13:21
  • Thanks, so completely wiping the mac and reinstalling it fixes it? Did you try that? – Shahraiz T. Nov 9 at 15:57
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    In my case it didn't work as my internet doesn't allow IPV6. But it might work in your case.I see you did some replacement of parts. I will try replacement soon. – Kazi Upal Nov 11 at 6:09

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