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danb1974 Level 1 (0 points)

MBP 13" mid 2010 (7.1) just installed a fresh copy of Lion. After reboot volume control does not work (audio device - which is internal speakers - has no controls), but there is sound. After inserting headphones the volume control starts working, and remains functional after removing the headphones.


Basically after each reboot I have to temporary plug headphones to get volume control working. Nothing in dmesg or system.log


I'm familiar with linux so if you tell me how to debug this I'll happily do it, not afraid at all of command line or searching through logs.


(and you'd think that having control both over hardware and software would prevent such frustrating problems)

Macbook Pro 2010, Mac OS X (10.7)
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