[Odroid-C2] TV Power-On by CEC

    Hi. I've been using Coreelec 9.2.5 (Leia) with my ODroid for a few years now. I want to upgrade to a newer Kodi and Libreelec 12.2.

    My Samsung TV will not power on the Odroid while running Libreelec. It will power it on when I boot with Coreelec. I've gone into the Libreelec settings and confirmed that the CEC settings match what works in Coreelec, but no dice.

    Can someone suggest some steps to troubleshoot this, or maybe config file tweaks that are known to be help for this old hardware?

    Thanks in advance for any suggestions that you can give. :)

    The ability to turn on from CEC probably requires support in (mainline) u-boot and for the device to be in a suspended state so there's some level of power to detect things on the HDMI connection. I've no idea if that's implemented or not. I'll ask the main Amlogic u-boot custodian, but an answer might take a while as I know he's currently on vacation.

    Quote from chewitt

    I'll ask the main Amlogic u-boot custodian, but an answer might take a while as I know he's currently on vacation.

    Thanks for this.

    I understand that it may not be a good idea to try moving to 12.x because of less video support due to having to rely on software rendering, but I wanted to give it a try. If power on via HDMI-CEC isn't going to work I'd just assume waiting until I upgrade to a new board.

    The upstream hardware decoders aren't perfect but much depends on the source media. Some users have collections that will fail miserably. Others will find it's surprisingly usable. You'll need to experiment with a spare SD card or eMMC module.