Mstrondheim

Q: External monitor - flickering screen - Asus pg278q

Hi,

 

I am using  model MacBookPro11,2 (Intel Iris Pro) with an external monitor Asus pg278q. Each time i close the lid to use the external monitor i get this flickering screen. When i close the lid, the refresh rate on the monitor changes from 60Hz to 144Hz.  I had the same problem in OS  X 10.11 and now in 10.12. I have connected the monitor with a DisplayPort to miniDisplayPort cable. Normally, i keep the lid open and brightness to zero and work on the monitor.

 

I have tried to reset NVRAM but no improvement. I couldn't do SMC reset. The magsafe connector did not change its color upon reseting SMC. I followed the exact instructions on resetting SMC given from Apple.

 

I am looking forward for your suggestions. Thank you!

 

Mst

 

flickering.jpg

IMG_1468.jpg

MacBook Pro (Retina, 15-inch, Late 2013), iOS 10, macOS Sierra

Posted on Sep 20, 2016 4:17 PM