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dual monitor problems


johnnieh
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I am having trouble getting dual monitors to work. usually one in every three to four boots will fire up with both monitors working no problem.  Two out of three will boot to white screen with or without mouse on one of the screens.  I can boot with one monitor no problem on hdmi port.  Trying to boot my other monitor on its own does not work through dvi port.  If I boot with one monitor plugged in to hdmi, let it boot to osx then plug in second dvi monitor it  works.  ?? Anyone have any insight as to what I may need to do for this?

 

running mavericks 10.9.2 

ati gigabyte r9 270 gpu

amd driver pack installed 

 

Thanks!!

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