Headphone / Sound Issues Mac Book Pro
Sometimes when I unplug or plug in my headphones the sound stops working completely on my Mac Book Pro.
It only starts working again when I restart.
When I restart it sometimes but not always comes up with the message that the iTunes volume is right down. Even though it wasn't when I pressed restart.
You can expect the sound to be interrupted in some cases, especially if you're using a longer cable. Usually, if you wait a while, the sound will return when your MBP detect the signal. You shouldn't have to wait for a reboot to fix things.
What's happening is that your MBP is trying analyze whether to use the input or output. It seems it's taking too long, Go to System Preferences/Sound/Output; "Headphones" should be listed when your phones are attached. For "Input," make sure it's set to "Internal Microphone."
Or, as a test, plug in a pair of earbuds instead of a headphone.
Post with your results.
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If you are having issues connecting an external display to your MacBook Pro, but the same display and adapter appear to be working fine with another similar computer, you may find the troubleshooting steps outlined in the following article helpful:
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You may find the troubleshooting steps in the article below helpful.
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My sound on my mac book pro is not working at all anymore. I used it in the morning and it worked just fine and i came back at night and my sound was gone. I checked my output settings, raised the volume up all the way, made sure that i wasn't on mute, everything... Even when i plug my headphones in it doesnt work...
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In addition to checking system preferences/sound/output and selecting built in if that does not work, make sure volume is up and mute not checked.
You can try the following, Take a set of headphones and plug theim in and out several times (there is a micro switch that sometimes gets stuck)
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Power off, power back on holding the following keys OPTION + COMMAND + P + R
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