Force hdmi doesn't work

  • I installed libreelec on my RPI4 2GB and I just can't get hdmi_force_hotplug=1 to work. The raspberry is connected to an AVR. Original power supply and hdmi connecter are used.

    My config.txt looks as follows:

    That way, the screen says "no signal" when the RPI is on before the AVR. hdmi_group=2 with hdmi_mode=76 also results in the same behaviour. When deleting hdmi_mode=xx it works, but the resolution is set to 1024 x 768.

    Without any hdmi_group entry the raspberry boots (while AVR on) with 1080p 60 Hz. So this should be the right resolution.

    I can't find a solution and I do not know any more.

    Edited 2 times, last by dcea (August 30, 2020 at 1:56 PM).

  • That did the trick! Thank you very much. I saw that option in the raspberrypi.org documentation but did not think that this could be relevant for me.