No Signal on Raspberry Pi (using vcgencmd) doesn't work on Kodi 18 on RPi

[begasslmaier]

"Error 2 File not found" is reported. Changing screensaver.py to contain the full path "/opt/vc/bin/vcgencmd" makes it work, so this path might not be included in the command search path.

[dagwieers]

I guess it depends on the platform, as I use it like this on LibreELEC:

LibreELEC (official): 9.0.2 (RPi2.arm)
kodi01:~ # which vcgencmd
/usr/bin/vcgencmd

And this is why we don't put an absolute path in the command.

[u-quark]

Not adding the full path to the vcgencmd command is the right call. The problem is that the environment variable PATH seems to not have the correct value when the plugin runs. Not sure why or where is the right place to change that. On OSMC Released 2022-03-14 with a Pi 4 when I ssh the $PATH includes: /usr/osmc/bin:/opt/vc/bin while PATH from inside the plugin python code does not include those.
Given OSMC is quite popular on RPi, consider altering PATH to include those paths in the plugin code, something like:

import os
os.environ["PATH"] += ':/usr/osmc/bin:/opt/vc/bin'

A bit of a hack but I think it is worth it.

[th3gr33n]

vcgencmd doesnt work anymore with newer Kernels see
raspberrypi/firmware#1740
https://forums.raspberrypi.com/viewtopic.php?t=331817

could u implement a replacement ? because right now there is now way in Kodi to turn HDMi off it seems