I just went through this. What I did to trouble-shoot was to go into settings and set 720 mode for the display (the default had been 'automatic'). I could see quickly that the screen blanking had stopped. That told me that something was degrading the signal on the HDMI.
Doing that also allowed me to experiment more easily: I would try something, go into settings and try to set 1080p, and see how the screen behaved. If it completely failed and stayed black, it would default back to the working 720 configuration within about 20 seconds.
My issue turned out to be an extractor box and I was able to eventually find a mode on the extractor that didn't interfere with the signal.
Thanks for keeping us posted in this thread, trindflo
We appreciate your efforts in taking the time for a workaround. It would help to identify if the issue is related to the hardware or software when trying to plug the Roku device into another TV and see if the issue persists.
Please let us know what you find out, and keep us updated if you have further concerns or inquries.
Best wishes,
Kash
