82      iPhone_iPad_Mac_apple

my mac does white waves and works in slowmotion...

iMac 2012

I tried rebooting 

Thé keyboard has now been disconnected 

You can test your iMac with a different keyboard, most any generic USB keyboard will work.

(I've been using Logitech USB keyboards for years)

As for the white wave problem, try starting up in Safe Mode to see if the problem goes away.

see > Use safe mode to isolate issues with your Mac - Apple Support

最後更新：2017-09-04 06:43:03

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