Q: imac 27" black screen
Imac was purchased about 4 years ago and updated to Yosemite 6 months ago. for the past 2 months i have been experiencing the screen going black. it most of the time corrects itself and just seems to be flashing. Its not regular, there is no pattern and twice it just went black and didnt return until i switched everything off and restarted.
my second screen, A Benq, shows its fine when this happens - i can see all on the second screen and i can see all external hard drives are connected, working and accessible.
i have googled and checked previous discussions but i still dont know what course to take? all /any advice greatly appreciated.
thanks
iMac, Mac OS X (10.7.5)
Posted on Oct 19, 2015 5:51 PM
What happens if you disconnect the 2nd screen?
Posted on Nov 2, 2015 12:37 PM