skeptical

Thanks for the reply, Werner. No joy, same result.

Can anyone confirm whether HDMI-CEC is working on the opi5pro? I got one recently and regardless of distro neither cec-utils or v4l-utils can see any devices. e.g. cec-ctl: > cec-ctl -S Driver Info: Driver Name : dwhdmi-rockchip Adapter Name : dw_hdmi_qp Capabilities : 0x0000000e Logical Addresses Transmit Passthrough Driver version : 6.1.75 Available Logical Addresses: 4 Connector Info : None Physical Address : f.f.f.f Logical Address Mask : 0x0000 CEC Version : 2.0 Vendor ID : 0x000c03 (HDMI) OSD Name : 'Playback' Logical Addresses : 1 (Allow RC Passthrough) Logical Address : Not Allocated Primary Device Type : Playback Logical Address Type : Playback All Device Types : Playback RC TV Profile : None Device Features : None Topology: and cec-client, after building libcec6 with -DHAVE_LINUX_API=1 -DHAVE_RPI_LIB=0 for each distro I tried: > echo "scan" | cec-client Linux -s -d 1 opening a connection to the CEC adapter... ERROR: [ 609] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 ERROR: [ 609] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 ERROR: [ 903] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 (... repeats numerous times...) ERROR: [ 1819] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 CEC bus information =================== device #1: Recorder 1 address: 1.0.0.0 active source: no vendor: Pulse Eight osd string: CECTester CEC version: 1.4 power status: on language: eng currently active source: unknown (-1) ERROR: [ 1820] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 ERROR: [ 1820] CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT failed - tx_status=00 errno=64 Distros I tried (all with same/similar result): https://dl.armbian.com/orangepi5pro/Noble_vendor_gnome (opi official distro) Orangepi5pro_1.0.4_debian_bookworm_desktop_xfce_linux6.1.43 Joshua-Riek/ubuntu-rockchip/.../v2.4.0/ubuntu-22.04-preinstalled-desktop-arm64-orangepi-5-pro https://dl.armbian.com/orangepi5pro/Bookworm_vendor_minimal And of course I tried every hdmi port and every hdmi cable in the house (including one from my old Raspberry Pi 2 Model B with fully working HDMI-CEC which detects 4 devices). Thanks, would be very interested to know if anyone has better results with the opi5pro.