When I try to plug my Pi2 into my A/V receiver via HDMI and plug in my power cable afterwards, the red light lights up, afterwards the green light lights once and then nothing.

When I plug in the HDMI after powering up the Pi, the Pi boots and gives a (low-res) image on HDMI. The resolution of the image stays low, even if I put hdmi_mode=16 in the config.txt. hdmi_group=1 and hdmi_mode=16 only put it into widescreen.

However if I plug the Pi directly into my TV, everything works fine!

I tried all of these HDMI options so far:

config_hdmi_boost=7 (I tried 4-7)

I don't know what else I could do, maybe I am missing something?

I tried it with 2 different SD Cards, one running OpenElec and one running normal Raspbian, with the same results on both cards/OSes :/

Any help is appreciated

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  • hdmi_safe=1 and your group/mode settings are contradictions, please see the documentation. I don't think this necessarily causes a problem, I believe the latter options will override the former, but it does not seem like a good idea if you are trying to fine tune/debug your issue. – goldilocks May 3 '16 at 15:26
  • Yeah I might have not stated that good enough, I tested hdmi_safe=1 independently from group/mode – DoktorMerlin May 3 '16 at 15:56
  • What is this A/V receiver? Is its HDMI port really an input? – Ghanima May 3 '16 at 16:43
  • Denon AVR-X500, yes ofcourse it is an input (I also tried 3 different inputs with the same result everywhere) – DoktorMerlin May 3 '16 at 17:11
  • I felt a little stupid after asking ;) – Ghanima May 3 '16 at 18:00

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