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Q: OSX Yosemite 2nd monitor issue after upgrade

MacBook Pro (Retina, Mid 2012)

NVIDIA GeForce GT 650M 1024 MB

OS X 10.10.3


This worked before the upgrade.

 

I've seen a few others that seem similar to mine, but this could be unique.   I have a HDMI-->DVI-->Acer AL2216W adapter plugged into my MBP.

 

When it works:
1.  After reboot

 

When it doesn't work:

1.  After plugging into any other monitor and no reboot.

 

All other monitors using a straight HDMI or Thunderbolt adapter work fine.  They work fine without reboots as well.   Oddly the DVI monitor does appear to be "active" as I can drag windows into it, it just doesn't actually light up the screen.   After a reboot, the monitor is active again.   Once I plug into the TV, or an Apple Display, it stops working until another reboot. 


Also, during reboots, I get a message that my computer shut down unexpectedly, which isn't true as I initiated the reboot. 

MacBook Pro with Retina display, OS X Yosemite (10.10.3)

Posted on May 12, 2015 2:48 PM

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