Wake from sleep volume extremely loud after 10.9.4 update

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Level 1

4 points

Wake from sleep volume extremely loud after 10.9.4 update

Every time I wake from sleep since the 10.9.4 update, my Mac Pro's volume to my speakers (via headphone jack) seems to be insanely loud despite system prefs showing the volume level at middle. Normally I like to keep my speaker's volume high and turn the system volume down, but it seems like the OSX is ignoring the system volume setting after waking up. It reverts to proper behavior when I hit volume up or down on the keyboard. Anyone notice this?

Posted on Jul 7, 2014 9:08 AM

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Answer 1

Best reply

John Galt

Level 10

140,912 points

Jul 7, 2014 9:34 AM in response to allinspite

Reset the NVRAM.

NVRAM reset:

Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. If issues persist, your Mac's logic board battery (not a portable Mac's rechargeable battery) may need to be replaced. The logic board battery helps retain NVRAM/PRAM settings when your computer is shut down. You can take your Mac to a Mac Genius or Apple Authorized Service Provider to replace the battery on the logic board.

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Answer 2

allinspite Author

Level 1

4 points

Jul 10, 2014 7:22 AM in response to John Galt

That worked, thank you!

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Answer 3

allinspite Author

Level 1

4 points

Jul 12, 2014 6:18 AM in response to John Galt

After a few days of sleeping and waking it appears the volume is loud again when waking up. I marked this as solved since a reboot and PRAM reset seemed to fix it, but it looks like it's a persisting issue. It's possible a simple reboot is what truly fixed it temporarily. Any other ideas?

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Answer 4

Eric Root

Level 10

684,015 points

Jul 12, 2014 1:03 PM in response to allinspite

As a test, try turning down the volume in System Preferences and on the speakers.

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Answer 5

allinspite Author

Level 1

4 points

Jul 13, 2014 9:15 PM in response to Eric Root

With the volume lower on the speakers and system volume down, it still shows the same signs. Waking from sleep is initially louder, then adjusting volume (via volume up/down on keyboard) for the first time after wake seems to bring it back to where it should be. Visually when waking from sleep, the volume appears to be at half, where I left it, but it's acting like it's on full until I make an adjustment. Seems like an 10.9.4 issue that may pertain to the new Mac Pros using analog audio?

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Answer 6

Eric Root

Level 10

684,015 points

Jul 14, 2014 8:09 AM in response to allinspite

Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.

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