I have elementary OS Freya installed on a 2009 MacBook Pro. After the initial install and update/upgrade last night, elementary worked great for the 6 hours I was using the laptop. When finished I closed the lid which put the laptop to sleep. I noticed in class today, when I opened the macbook it allowed me to click my wireless network on campus, but then locked up/froze while connecting to the network. After about 40 seconds, the splash screen to log in pops up. I can log in and at that point I was connected to the wireless network, but all my previously opened applications where shutdown and when I re-opened them, they needed recovering. I used the laptop like normal for another hour.
I finished my work and closed my lid, once again putting the laptop to sleep. In my next class I opened my laptop and proceeded to click Libre Office Writer, it partially opened then locked up/froze. After 45 seconds or so, the splash screen re-appeared and I was able to log in. Once again, all applications previously opened were closed and needed recovering when opening files.
I have a feeling this has to do with sleep? I have also noticed my laptop runs considerably hotter than using Mac OS X. I have installed tlp and have it enabled, I also have powertop installed. I'm currently using open source graphics--I have NEVER been successful in getting nvidia mac graphics working (always black screen afterwards, regardless of which distro or nvidia number driver I try.)
Any advice on what might be causing the freezing and how I can fix this issue?