Mid 2012 MBP Running Hot after 10.10.3 Update

[soccerrocks314]

So I update my MBP two days ago. With in those two days I have noticed that when waking up from sleep mode or opening the lid that with in 5 minutes the underside is really warm while doing simple task like browsing safari or checking email. The only programs running are mail and safari.

More Specifically:

Temperature Gauge (App) Reads GPU 1 Diode around 98 degrees celsius​

Activity Monitor shows that a process called "discoveryd" is using close to a 100% of the CPU​

A restart of the computer shows "discoveryd" using 0.2% of CPU and the temperature of the GPU 1 Diode immediately starts to cool down to a pretty consistent 52 degrees celsius.

All of the problems above can be replicated and solved by a restart but reoccur when the lid is closed.

Anyone else suffering anything similar or know of a solution to the problem?

Thanks for your help in advance!


MBP Specs:
Mid 2012
2.9GHZ i7
8GB Ram
512 GB Samsung SSD 840 Pro

 

[soccerrocks314]

Solution!!!

Well at least this worked for me and hopefully the same for you! I found this solution from this apple support community page https://discussions.apple.com/thread/6662210?start=60&tstart=0 . Best of Luck!

The fix that works in many (all?) cases for the 'discoveryd 100% CPU on Yosemite' issue is

Use 'Finder > Go' to go to this folder:

/Library/Preferences/SystemConfiguration/

Delete the file 'preferences.plist' and restart your Mac. Google for the above path if you want further details.