Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

killbill7

macrumors newbie
Original poster
Jun 3, 2020
1
0
Hi Guys, I have 2012 Macbook pro which runs fine without any issues at all. However when I connect external monitor , after few hours or sometimes earlier, everything slows down and I am not able to do anything. I looked at activity monitor and it seems like Kernal_task ends up using crazy amount of CPU which is causing the slow down. Every thing goes back to normal once I unplug the external monitor. Anyone has encountered this problem before and any solutions?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.