Hi everybody,
I have the same problem with the Nexus version.
Before, I used libreelec v9.2, v10 and v11.0 upgrade of V10 and the CEC works great.
Yesterday, I do a clean installation of the latest version of libreelec V11.0.1 and the CEC don't work now.
We have not the same properties in the CEC adapter in libreelec V10 and the new CEC adapter.
I wait the update of libreelec because this features is very usefull.
Thomas