Xfinity Black Screen on Turn On

Here is the information about my setup.

TV Provider : Xfinity/Comcast

STB: XG1-A

AVR : Denon AVR-1910

TV : Samsung 46" LED (Don't know model number)

Layout : STB->Xbox One->AVR->TV (all connections via HDMI)

Ever since the system came out, I have been using DirecTV's HR24 STB's with absolutely zero issues. I just moved and am required to get Comcast/Xfinity. With this new Xfinity box I keep getting black screens when I boot up the system. I use my harmony
remote to turn on box Xbox One, my AVR, my TV, and my STB (which never actually shuts off because Xfinity won't let me shut it off with a remote). After turning on the system, about 50% of the time the TV app will show about 2-3 seconds of video and then
the screen will go black and the only way to get it back is to pull the HDMI cable from the cable box or reset it's power. Any ideas?

:)

 

Black Screen of Death

I had the same thing. Turn on, remove disk. Turn off. Unplug the power cord from the power brick. Wait one minute. Plug back in, Turn on. That worked for me.

I also ran into another black screen fix online. See link to article on segmentnext.com below:

segmentnext.com/.../xbox-one-black-screen-fix

 

Xbox one stuck at startup screen

I tried to turn on my Xbox One and it got to the starting green screen that says xbox one. It stayed there for around 20 minutes before going to a black screen with nothing on it. After 10 more minutes on that black screen it turns itself off and then
when I turn it back on it repeats.

 

Also it's not the whole screen that goes black, it's only the TV app screen that goes black

 

I've been having this issue for months with Comcast / Motorola RNG200N box. I was having to cold reboot 3x+/day. It seems to be a bit better recently with only a few cold reboots/week now. Haven't seen or hear anything that suggests any fix other than rebooting
(in some way, shape or form).

 

Yup, that's pretty much what I'm doing too. I replaced the cable with a newer high speed cable and thought that might have fixed it, only to have it happen 3x more times yesterday so it's definitely not fixed. Pretty frustrating.

 

With the most recent software upgrade (August preview I believe) this issue seems to have gone away for me. It looks as though it's been resolved for this particular Comcast box.