Could be faulty still but doubtful or you'd probably have more issues than this. GPU seems to be fine if you are getting video on your main display. You need a working version of each part and test each individually.you need to find the weak part on the chain. Motherboard to GPU to HDMI input to HDMI adapter to VGA cable to Monitor. On anything else.)Įssentially you think about every part in play here. Try using a different cable, just to rule out the possibility that the cable is the issue (regardless if it works somewhere else, irrelevant to me, I need proof that the HDMI port works period. Try connecting to a different monitor or tv and see what happens. Once you plug in the display, see if system preferences shows any new monitors. While HDMI is unplugged.Open up System Preferences and click on Monitors. If that doesn't work you need to narrow it down.find the component at fault here. Restart computer and also do a PRAM reset. Windows XP, Windows Vista, Windows 7 and Mac OS X v10.Former Apple Genius.This flashing business actually happens to me all the time and it happens in every computer I've ever had. If your terminal device (Monitor, Projector.) has not been connected to the adapter yet, make the connection and power on your terminal device again. Then connect the HDMI connector to your terminal device coordinative port as well.
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