Hello
I switched a few days ago to 12.0.1 on my RPi4, and I noticed that changing source (on my TV) to the hdmi port where the RPi is connected doesn't wake up RPi/LibreELEc anymore and the TV screen stays blank. This is quite annoying since I have to use Yatse as a remote, but my kids doesn't have a smartphone (with Yatse) btw it also looks like the RPi/LibreELEC doesn't announce itself anymore as "Kodi", as it used to be on 12.0.0 and prior.
I used to be fine with the lost of the "easy" connection with HDMI, when upgrading to LibreELEC 12, since these old Samsung TV were known for requiring a "double" CEC call to properly connect. I cannot find it anymore, but I'm sure I had read something about the removal of this hack in the forum or github.
Any idea/bug report for my stand-by/wake up thing ?