4 Replies Latest reply: Feb 8, 2012 4:50 AM by jmsfmtex
jmsfmtex Level 1 Level 1
expertise.appletv
Apple TV

After closing the lid and then opening again my system does not appear to wake up. Sometimes I hear something happening when I click a few keys but no screen output. I have to shut down and reboot. This time I had the mail client running but nothing else. This is after installing the new O/S.

Solved by Domooo on Feb 8, 2012 4:06 AM Solved

Best,

 

Reset your PRAM by holding the ALT+CMD+P+R keys while turning on the Mac.

 

To reset your SMC you just pull out all cable's of the mac, keep it like that for 2 minutes.

 

Articles:

 

http://support.apple.com/kb/HT1379

http://support.apple.com/kb/HT1895