Lost sound, isight camera and slow usb transfer
My problem started with lost sound. Suddenly I got no sound output device listed in system information. After SMC reset it appeared to get lost after some time again. The same happened to isight camera - once it was present, and once lost. While connecting external USB HD I sometimes got it connected properly to hi speed usb bus and sometimes it appeared under usb bus and the transfer was terribly slow.
Now I am after clean installation of os x and got no sound, isight is sometimes present sometimes not and usb devices are always very slow.
I would be grateful for any suggestions.
Is this a good question?