Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

External TV stopped working after connecting HDMI to monitor

I have a Mac Pro 2010 connected to a HP LP2475w monitor


I have a 40" Samsung Smart TV Connected to the Mac Pro via MDP - HDMI


Everything was working fine, I could enable / disable the Samsung TV via the 'Disable Monoitor' app ver 1.92


After connecting a HDMI cable to the monitor from a Elgato Game capture HD device, The Samsung Smart TV is no longer detected.


In System Prefs - Displays I cant select the Samsung Smart TV despite being connected - somehow, connecting a HDMI to the HP Monitor has knocked something out and perhaps has stopped some sort of signal getting thru?

Mac Pro (Mid 2010), OS X Mountain Lion (10.8.5)

Posted on Nov 20, 2015 9:32 AM

Reply
1 reply

External TV stopped working after connecting HDMI to monitor

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.