Unstable HDMI signal

[Nachteule]

(20th Apr, 2017 05:10 PM)MichaelRu Wrote:  I didn't configure CEC and don't need it. Is it on per default? Where can I disable it?

Uncheck Kodi -> Settings -> System settings -> Input -> Peripherals -> CEC Adapter -> Enabled -> Ok

Quote:I also used NOOBS to install Raspbian. During the installation when NOOBS was running, I did see the problem too, but when Raspbian was started, everything was ok.
Unfortunately in Raspbian I didn't see what display settings it used in detail. It just used "Monitor defaults".
In Kodi I tried 1080p with 24, 30 and 60fps and 720p with 50fps. But they all showed the problem.

I could open an issue for the Raspberry firmware, but how can it be the firmware when Raspbian works (at least for those ~15mins I tried)?

How long are your HDMI cables? I have simililar issue between Hummingboard and TV (about one black screen for 3s per hour), however I have critical environment with 15m CEC cable but that does not bother me.

Maybe you could change HDMI setting on your AVR or Beamer, you have to play with them