WeTek Play 2: 4K above 30 Hz doesn't work and Frame dropping in Live TV

    Hi there i encountered a Problem with my WeTek Play 2.

    Setup:

    WeTek Play 2 (LibreELEC 9.0.0) -> Onkyo AVR -> Thomson TV


    3840x2160p at anything higher than 30 Hz doesn't work at all. There is a blue screen which indicates there's no input at the AVR. I read the manual of the AVR it is capable up to 4K at 60 Hz. Tried it with the original firmware of the WP2 which displays with 3840x2160p at 60 Hz. Further there is serious frame dropping while watching Live TV (Tvheadend 4.2 + Tvheadend HTSP Client 4.4.12.2). While Debug log activated i saw how much as it dropped to nearly only 10 fps.

    Kodi Log: hastebin

    dmesg: hastebin

    Thanks