Hdmi_cec kills homeassistant process during startup

Configuration
1

hdmi_cec has stopped working for me and actually crashes HA during startup if it’s enabled.

I have tried limiting the configuration to only this with the same result:

homeassistant:
  name: Home
  latitude: !secret home_latitude
  longitude: !secret home_longitude
  elevation: !secret home_elevation
  unit_system: !secret unit_system
  time_zone: !secret time_zone

http:
  api_password: !secret http_password
  base_url: !secret http_base_url
  ssl_key: !secret http_ssl_key
  ssl_certificate: !secret http_ssl_certificate

frontend:
config:
logger:
hdmi_cec: !include cfg/hdmi_cec.yaml

cfg/hdmi_cec.yaml:

devices:
  tv: 0.0.0.0
  yamaha: 1.0.0.0
  teliatv: 1.4.0.0

This is the relevant output from journalctl after a homeassistant restart:

Apr 20 12:40:44 razberry systemd[1]: Starting Home Assistant...
...
Apr 20 12:40:50 razberry hass[14799]: INFO:homeassistant.loader:Loaded hdmi_cec from homeassistant.components.hdmi_cec
...
Apr 20 12:40:51 razberry hass[14799]: INFO:homeassistant.setup:Setting up hdmi_cec
Apr 20 12:40:51 razberry hass[14799]: DEBUG:homeassistant.components.hdmi_cec:Parsing config {'yamaha': '1.0.0.0', 'teliatv': '1.4.0.0', 'tv': '0.0.0.0'}
Apr 20 12:40:51 razberry hass[14799]: DEBUG:homeassistant.components.hdmi_cec:Parsed devices: {'yamaha': <pycec.network.PhysicalAddress object at 0x7.....b0>, 'teliatv': <pycec.network.PhysicalAddress object at 0x7.....d0>, 'tv': <pycec.network.PhysicalAddress object at 0x7.....70>}
Apr 20 12:40:51 razberry systemd[1]: homeassistant.service: main process exited, code=killed, status=11/SEGV
Apr 20 12:40:51 razberry systemd[1]: Unit homeassistant.service entered failed state.

hdmi_cec has worked before, and it doesn’t matter if all I have in the config is just hdmi_cec: or something more complex.

I am not sure what has caused this change. My libcec installation is the same as from when it worked, and I can use cec-client from the command line without problems.

echo scan | cec-client -s -d 1 shows a list of all devices as it should.

Any ideas on what might be wrong, or how to further debug this?

HomeAssistant 0.42.4 on Raspberry3

2

What has changed in your system between when it worked and when it crashes the system?

Update? or config change?

3

Wish that I knew, but in short: I can’t say for sure.

I had problem restarting HA one day and ended up reinstalling the whole virtualenv. Hdmi_cec may have been the root of my problems at that time, but if it was I must have missed it. I have ended up doing other changes since then, including upgrading to the latest homeassistant.

I know the following though:

  • hdmi_cec config hasn’t changed, and I get the same error even with an empty hdmi_cec: section in the configuration file.
  • libcec is the same as before (symlinked /srv/homeassistant/lib/python3.4/site-packages/cec -> /usr/local/lib/python3.4/dist-packages/cec ).
  • No relevant system packages have been upgraded since it was working.