I got a mid 2011 MacBook Air 13.6" and its keyboard and mouse freezes very often after I leave it in sleep mode for some time and it wakes up. Only the power key and the lid detector are still responsive. It’s also possible to connect to it via VNC or SSH.
I had a look into the error logs but I couldn’t find anything suspicious. I found out that the System Preferences app does not start anymore and all the OSX related menu bar icons seem to freeze too (Bluetooth, WiFi, Battery icons).
Freezes after sleep mode seem to be a common problem but I couldn’t find any case yet that is like mine (others have a grey screen, no WiFi connectivity, still mouse responsiveness or the keyboard responsiveness comes back after a while – issues I don’t have).
- Also the iSight Camera is not responsive anymore.
- Notification Center and Hibernation mode do not seem to be the problem (I tested both).