daasavings.blogg.se - No audio output to choose from on macbook pro

Back up your computer and perform an Archive and Install of your operating system.

If that works, it's a setting in your user account or a background program you've added causing the problem. (You can also get to a similar menu by option-clicking the speaker icon in your menu bar at the top-right of your screen.) Make sure the output device you want (Internal Speakers, Line Out, AirPlay device) is highlighted. In System Preferences, click Sound, then select the Output tab. Possible hardware includes: logic board (the main circuitry of your computer, including your sound card), I/O board, line out jack (if applicable), external sound card (often found in USB devices), and wiring to internal speakers.

If it's a hardware issue, fixing or working around the failed piece of hardware will resolve the issue.

You can do this either by installing OS X on an external drive or visiting your local Genius Bar.

If it's a software issue, booting from a known-working operating system will resolve the issue.

a hardware error somewhere between your CPU and your output device (speakers) a software error such as an incorrect configuration, corrupt drivers, software interference, or incorrect audio output selected, or This could be caused for one of two reasons: When you see this overlay, it means your selected audio output device has no volume control.