Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 10

Intermittent black screen with Roku Ultra

I have 2 Roku Ultra's.  Only one seems to have this problem.  Periodically the screen just goes black with no sound.  It looked like it lost the HDMI handshake, so I pulled the HDMI cable and replugged it.  Most of the time that fixed it. Until it happens again maybe a week or so later.    I have tried all 3 HDMI ports on my TV and rebooted the Roku.    I get the same result.

I see many complaints about this issue. Has it been solved?