586
no sound. no volume control in task bar. sound ...
iMac sierra version 10.12.6 2.7 GHz Intel Core i5. no sound, no volume control on task bar. Apple>preferences>sound - Sound is greyed out. A while ago I restarted the iMac holding the Shift key down, now no sound etc.
最後更新：2017-09-17 06:50:18
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