when i use the volume keys nothing happens. its blocked i cant change it in system preference eather 😟 i can mute or have the sound at the loudest. can any one tell me how to fix this?
MacBook Pro, Mac OS X (10.7)
Hi Cloe,
Safe Boot , (holding Shift key down at bootup), use Disk Utility from there to Repair Permissions, move these files to the Desktop.
/Users/YourUserName/Library/Preferences/com.apple.systemsound.plist
/Users/YourUserName/Library/Preferences/com.apple.systempreferences.plist
Reboot & see if you can set it again.
The Volume settinjg is stored in PRAM memory. Suggest you reset PRAM. http://support.apple.com/kb/ht1379
Cheers, Tom 😉
I have the same probelm. I found the problem is clearly linked to bluetooth. Solution is there although annoying.
Switch your iMac off.
Remove batteries from the wireless keyboard.
Switch your Mac on.
Sound is back, and after placing batteries back in your keyboard you can see also that sound keys are working again. Unfortunatelly you have to make this operation each time when you switching your iMac off.
By the way, Macs were supposed to be so free of bugs. Crap.
Enjoy sound control and share real fix when have it.
Great work/find, thanks for the post! 🙂
I can no longer change the volume, anyone know why?
