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

krapidler

macrumors member
Original poster
Dec 9, 2009
36
4
Hi everyone

I have an early 2011 MBP operating in clamshell mode with an external Acer monitor connected to it, an Apple Bluetooth keyboard and a USB mouse.

Before installing Sierra, I could wake up the MBP by clicking the mouse or hitting a keyboard key. Since Sierra, all all that's been happening is that the little light on the monitor goes from orange to blue for a few seconds but then the display says "no signal". Quickly unplugging and plugging back in the video cable from the monitor helps - the monitor then gets a signal - but is obviously super annoying.

Has anyone encountered this/any way to fix this bug?

Thanks!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.