Change AVR source based on WebOS source

Configuration
1

Hi
I wanted to make automation that would change my AVR (Yamaha) to HDMI2 for specific source on TV (LG CX) and to HDMI1 on any other source. I crafted automation that you see below but it doesn’t work - I’m getting errors in log…I’m clearly doing something wrong here but I’m not sure what exactly.

- id: 'avrsourceontv'
  alias: AVR Source from TV
  description: 'Change AVR source based on TV source'
  trigger:
    - platform: state
      entity_id: media_player.lg_webos_smart_tv_2
      attribute: source
  action:
    - service: media_player.select_source
      data:
        entity_id: media_player.yamaha_receiver
        source: >
          {% if is_state_attr('media_player.lg_webos_smart_tv_2', 'source', 'Panasonic') -%}
            hdmi2
          {%- else -%}
            hdmi1
          {%- endif %}

I think those two errors are relevant to this automation:

2021-02-10 20:00:29 ERROR (MainThread) [homeassistant.components.automation.avr_source_from_tv] AVR Source from TV: Error executing script. Unexpected error for call_service at pos 1:
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 254, in _async_step
await getattr(
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 464, in _async_call_service_step
await service_task
File "/usr/src/homeassistant/homeassistant/core.py", line 1455, in async_call
task.result()
File "/usr/src/homeassistant/homeassistant/core.py", line 1490, in _execute_service
await handler.job.target(service_call)
File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 204, in handle_service
await self.hass.helpers.service.entity_service_call(
File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 595, in entity_service_call
future.result() # pop exception if have
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 664, in async_request_call
await coro
File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 632, in _handle_entity_call
await result
File "/usr/src/homeassistant/homeassistant/components/media_player/__init__.py", line 640, in async_select_source
await self.hass.async_add_executor_job(self.select_source, source)
File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/src/homeassistant/homeassistant/components/yamaha/media_player.py", line 357, in select_source
self.receiver.input = self._reverse_mapping.get(source, source)
File "/usr/local/lib/python3.8/site-packages/rxv/rxv.py", line 259, in input
assert input_name in self.inputs()
AssertionError
2021-02-10 20:00:29 ERROR (MainThread) [homeassistant.components.automation.avr_source_from_tv] While executing automation automation.avr_source_from_tv
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/automation/__init__.py", line 404, in async_trigger
await self.action_script.async_run(
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 1033, in async_run
await asyncio.shield(run.async_run())
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 246, in async_run
await self._async_step(log_exceptions=False)
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 254, in _async_step
await getattr(
File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 464, in _async_call_service_step
await service_task
File "/usr/src/homeassistant/homeassistant/core.py", line 1455, in async_call
task.result()
File "/usr/src/homeassistant/homeassistant/core.py", line 1490, in _execute_service
await handler.job.target(service_call)
File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 204, in handle_service
await self.hass.helpers.service.entity_service_call(
File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 595, in entity_service_call
future.result() # pop exception if have
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 664, in async_request_call
await coro
File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 632, in _handle_entity_call
await result
File "/usr/src/homeassistant/homeassistant/components/media_player/__init__.py", line 640, in async_select_source
await self.hass.async_add_executor_job(self.select_source, source)
File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/src/homeassistant/homeassistant/components/yamaha/media_player.py", line 357, in select_source
self.receiver.input = self._reverse_mapping.get(source, source)
File "/usr/local/lib/python3.8/site-packages/rxv/rxv.py", line 259, in input
assert input_name in self.inputs()
AssertionError
2

show us then :roll_eyes:

whilst we wait,
if you want to use an attribute state change for the trigger, do so on the template result. Many ways to implement this, one might be:

- alias: whatever
  trigger:
    - platform: template
      value_template: "{{ is_state_attr('<entity>', '<attribute>', ''<required attr vale>) }}"
  action:
    ..

and,
try out the editor Automation editor - Home Assistant

3

Yeah, sorry for not bringing errors right away but I cleared the logs and only later realized that those are still present but hidden. :roll_eyes:

I was thinking about triggering this way but that would trigger on specific source and I want to trigger on any source change.

As for the editor I do use it to check some combinations and thing like that. I can even edit this automation. What I don’t do is save anything with UI because it tends to make weird things with strings and numbers in automation.yaml like removing quotes from some time triggers.

4

That looks like an error thrown within the yamaha media_player.py code. Is the source value resolving to a known valid source? Carriage return/LF/space issues?

Try adding the dashes at the front of the ‘if’ and on the last ‘endif’ as below

{%- if is_state_attr('media_player.lg_webos_smart_tv_2', 'source', 'Panasonic') -%}
            hdmi2
          {%- else -%}
            hdmi1
          {%- endif -%}

Use the template editor to check what value this is resolving to, is it a valid source on your TV?

5

Thanks for the tips. I checked additional dashes but it still didn’t work. But I did more test with Dev Tools to see are the states for all the devices on source change. What I’ve initially noticed was that media_player.lg_webos_smart_tv_2 wouldn’t report source properly. At the same time HomeKit version did (yeah I have two integration for TV)…to some degree - it didn’t change source state when launching any built-in app (Netflix for example). So I restarted whole server and then source state started to work again. Automation also started to run as it should. So I ended up with this:

- id: 'avrsourceontv'
  alias: AVR Source from TV
  description: 'Change AVR source based on TV source'
  trigger:
    - platform: state
      entity_id: media_player.lg_webos_smart_tv_2
      attribute: source
    - platform: state
      entity_id: media_player.yamaha_receiver
      to: 'on'
  condition:
    - condition: state
      entity_id: media_player.yamaha_receiver
      state: 'on'
  action:
    - service: media_player.select_source
      data:
        entity_id: media_player.yamaha_receiver
        source: >
          {%- if is_state_attr('media_player.lg_webos_smart_tv_2', 'source', 'Panasonic') -%}
            HDMI2
          {%- else -%}
            HDMI1
          {%- endif -%}

What I need to figure out now is how to prevent TV from changing source back to HDMI1 because it does that it seems…but that’s something outside of HA scope. :wink: