El Capitan, no noise (no output found device)

Hi guys! It is my first post so be gentle.

I use a MacBook Pro (13-inch, mid-2014, retina), 2.6 GHz Intel Core i5, 8 GB 1600 MHz DDR3.

Had 'No output device found' problem since the update to El Capitan 10.11. I don't know if it's a hardware or software problem. I have not really tried many but read a few articles on Google. So I decided to wait for the next update that may resolve the problem, but no, I've just updated to 10.11.1 30 minutes before and still no audio. At startup, I'd hear startup sound with a small crack Mac like noise but after I log in, all the sounds of internal speakers disappeared. I tried to plug my headphones into the socket to THE, but still no sound. I hope someone can help. See you soon!

This is what it looks like in system preferences > Sound:

This is what it looks like when I press the volume up (F11) and the volume key (F12):

Have you tried to reset the SMC yet?  If not, here's how to a MacBook Pro"

MacBook Pro (early 2009) and later, all models of MacBook Air and MacBook (late 2009).

  1. Shut down the computer.
  2. Plug the MagSafe power to a power supply adapter, plugging on the Mac if it is not already connected.
  3. On the built-in keyboard, press Command-Option-shift keys (left side) and the power at the same time button.
  4. Release all the keys and the power button at the same time.
  5. Press the power button to turn on the computer.
  6. Note: The LED on the MagSafe power adapter may change State or temporarily disable when you reset the SMC.

I had a problem with one of my 3 USB ports and reset solved.

Here is a complete process and this article it does.

Reset the management system (SCM) controller on your Mac - Apple Support

Rick

Tags: Mac OS & System Software

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