MacBook Pro display doesn't turn on when HDMI is plugged in on cold boot


hey guys :)

bought shiny new macbook pro 6 weeks ago 16 gb of ram, i7 processor, 512 gb flash storage , dedicated ati graphics. absolutely love thing bits 1 particular issue has been bugging me.

have benq 27" display plugged in via hdmi , leave connected don't tend disconnect macbook pro desk @ moment. when cold boot os x, macbook pro display stays off , benq display turns on. way macbook pro display turn on either use "detect displays" or close , re-open lid. if reboot machine while it's on, works fine. power down again , turn on, same issue occurs.

here's video demonstration:

https://drive.google.com/file/d/0byjlglsre1h-nxbflxoyyxkxsnc/view?usp=sharing

i've rang apple support multiple times on , it's escalated engineering , i've been waiting on week reply. i've chased around 3 times far , getting little frustrated i'm told not expected behaviour , have never heard of problem.

appreciate ideas or advice, think macbook pro faulty? :)

in advance!
zambz
 

that indeed odd behaviour.

i'd put on sleep , stop shutting off (why power off anyway?) circumvent problem.
 


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