Kodi Matrix on Raspberry 4 - No signal on TV

  • Hello Forum,

    I tried a lot the last days and spent a lot of time on reading in forums and google for answers. Nothing helped. Maybe, you could give me a hint.

    The problem: Kodi 19.3 Matrix won't show up on my Raspi 4 connected to a Telefunken TV.

    What I have tried so far:

    • another Raspi 4
    • another HDMI Cable
    • another, stronger power source
    • modifications in http://config.txt/distroconfig.txt
      • core_freq=550
      • hdmi_safe=1
      • hdmi_group=1 or 2
      • various hdmi_modes from each group

    I thought, that the Raspi and TV would not work together. But if I insert a SD-Card with Raspberry Pi OS with Desktop into the same Raspberry, it boots up and shows a picture on this Telefunken TV.

    Also I tried to use Kodi Matrix 19.3 via OSMC on a Raspi 3B+ and connected it to the same TV: everything worked fine

    An older Libreelec-Version with Kodi 18.x worked also on the same Raspi4-Setup

    But if I use the combination Kodi 19.3 with this TV Setup, the TV shows a "no signal" Text.

    The fact, that the Raspberry Pi OS Desktop is shown on the same setup indicates for me, that there must be a "hidden" option in Kodi or Libreelec?

    The Splash Screen from OSMC is visible during boot, the Libreelec logo not.

    Here are the specifications of my TV: Telefunken Germany

    As you could see, the TV is capable of FullHD (1080p) at a maximum of 100 Hz

    Any suggestions from the community here? Anything, that I could try out?

    Please apologize my English, as I am not a native speaker.

    I thank you in advance for any help.