My 27" iMac's sound works about 50% of the time. The other half, the sound icon is greyed out and nothing will fix the problem. Rebooting the system doesn't even help.
My 27" iMac's sound works about 50% of the time. The other half, the sound icon is greyed out and nothing will fix the problem. My system will not boot into diagnostic mode (so please don't suggest that). Rebooting the system doesn't even help.
iMac, OS X Yosemite (10.10.2)
