Z3000 Pro CEC Bug - No AVR Wake Command Sent

Discussion in 'Other' started by John Pendasulo, Feb 13, 2026.

  1. John Pendasulo

    John Pendasulo New Member

    Issue - Z3000 Pro CEC Bug — No AVR Wake Command Sent (Denon X3800H / LG TV)

    I have a reproducible CEC issue on the Z3000 Pro (Amlogic S928X):
    • Zidoo successfully turns on my LG TV via CEC

    • LG TV successfully turns on my Denon AVR‑X3800H when the TV is powered on manually

    • Other sources (cable box, Roku, etc.) also turn on the Denon correctly

    • Only the Zidoo fails to wake the AVR
    This shows the Denon and TV are handling CEC correctly.

    The root cause appears to be that the Zidoo is not sending the AVR wake opcode when it powers on. Specifically, it does not send either:

    • Image View On (0x04)

    • Active Source (0x82)
    These are the standard CEC commands required to wake an AVR from standby.

    Zidoo currently offers several CEC options (TV on/off, device on/off, etc.), but there is no option to send an AVR wake command, and the firmware does not send one automatically.

    Expected behavior: When the Zidoo powers on and wakes the TV, it should also send the AVR wake opcode so the AVR powers on like other CEC‑compliant sources.

    Actual behavior: Zidoo wakes the TV only. The AVR remains off. Because the the Zidoo initiated the start up the TV does not send a code to the AVR.

    Request: Please add a proper AVR wake command on boot, or provide a CEC option to force sending “Image View On” or “Active Source” when the Zidoo turns on.

    This issue is reproducible on the Z3000 Pro. The same AVR and TV wake correctly from all other HDMI sources.
     

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