Re-casting a dashboard causes Home Assistant Cast to break

[jeremynoesen]

The problem

While a dashboard is already being cast to my Nest Hub (2nd gen), calling cast.show_lovelace_view with the same dashboard and view that is currently casting will cause two things:

1. The Nest Hub will minimize the current cast and go back to the clock after like 30 seconds, and will keep doing so even when tapping on the tile again.
2. The dashboard does not re-cast, instead the previous cast remains casting.

Re-casting is useful for when a cast service call is somehow called another time (via an automation for example), or when restarting the cast to fix issues with custom cards not loading the first time. Currently, I am calling media_player.turn_off before casting again to avoid this behavior.

When doing something similar with media_player.play_media (media already playing, playing the same media again via the service call), the media restarts normally and there are no issues.

I am unsure if this happens on other Chromecast devices, as I do not have any others.

What version of Home Assistant Core has the issue?

core-2024.1.3

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Google Cast

Link to integration documentation on our website

https://www.home-assistant.io/integrations/cast/

Diagnostics information

home-assistant_cast_2024-01-15T20-19-46.698Z.log

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant[bot]]

Hey there @emontnemery, mind taking a look at this issue as it has been labeled with an integration (cast) you are listed as a code owner for? Thanks!

Code owner commands

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[ENT108]

Yeah, same here.

[emontnemery]

I've tried re-casting the same view several times to a 2nd generation Nest hub, model number GUIK2, but I can't reproduce the problem.

@jeremynoesen the log you shared only shows a single attempt to show a lovelace view

To help solve this, please enable the logs below, then reproduce the issue - i.e. cast the lovelace view twice and make sure the issue happens - and share the log

logger:
  default: debug
  default: info
  logs:
    homeassistant.core: debug
    homeassistant.components.cast: debug
    pychromecast: debug
    pychromecast.dial: warning
    pychromecast.discovery: warning
    homeassistant.components.cast.discovery: warning

[jeremynoesen]

Sorry, the logs I posted only showed the re-cast. I will try this again with both casts and all that logging enabled within the next week.

[jeremynoesen]

Here is my log file. At some point I casted, waited for that to load, casted again, then waited like 30 sec for the stream to minimize on the nest hub. home-assistant.log

[jeremynoesen]

This same issue just happened to me when casting a different dashboard. This happens infrequently, while the topic of this issue happens regularly.

[jeremynoesen]

This issue still occurs as of core-2024.3.1. There is no issue casting a different view when a dashboard is already being cast, but casting the same view again, common when an automation is firing again, causes the same behavior as described in the original issue. If more logs are needed than what was provided, please let me know.

[jeverley]

Here is my log file. At some point I casted, waited for that to load, casted again, then waited like 30 sec for the stream to minimize on the nest hub. home-assistant.log

I'm also seeing the same behaviour on a 1st gen google Nest Hub, HA Core 2024.4.3 (I can also provide logs if useful, but they look pretty similar to those attached by @jeremynoesen).

[mvanlijden]

Same issue here with first gen Google Hubs and different camera pages

[mvanlijden]

@emontnemery I keep seeing this error in my debug logging for Cast:

2024-07-10 10:06:53.702 ERROR (SyncWorker_60) [homeassistant.util.logging] Exception in _handle_signal_show_view when dispatching 'cast_show_view': ({'hass_url': 'https://*snip*.ui.nabu.casa', 'hass_uuid': 'snip', 'client_id': None, 'refresh_token': 'snip'}, 'media_player.hub_werkkamer', 'all', 'dashboard-cameras') Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/cast/media_player.py", line 1031, in _handle_signal_show_view self._hass_cast_controller.show_lovelace_view(view_path, url_path) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 195, in show_lovelace_view self._send_connected_message( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 215, in _send_connected_message self.send_message_nocheck(data, callback_function=callback_function) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/init.py", line 186, in send_message_nocheck self._message_func( File "/usr/local/lib/python3.12/site-packages/pychromecast/socket_client.py", line 949, in send_app_message raise UnsupportedNamespace( pychromecast.error.UnsupportedNamespace: Namespace urn:x-cast:com.nabucasa.hast is not supported by current app. Supported are urn:x-cast:com.google.cast.sse, urn:x-cast:com.google.cast.cac

My HA is up to date to latest release. Device is Nest Hub Gen 1 Fuchsia version 18.20240225.3.63 Software version: 58.102.2.613521407 Chromecast firmware: 3.73.411796

[turbatus]

Hello, I have the same issue, casting to Nest works for the first dashboard, subsequent casting does not work. If I restart HA then the first casting works, but noting after that. Note: only dashboard casting is impacted, casting images, for example, works just fine. Log below:

Logger: homeassistant.util.logging Source: util/logging.py:95 First occurred: 10:42:09 (11 occurrences) Last logged: 12:08:34

Exception in _handle_signal_show_view when dispatching 'cast_show_view': ({'hass_url': 'https://redacted', 'hass_uuid': 'redacted', 'client_id': None, 'refresh_token': 'redacted'}, 'media_player.google_nest_hub', '0', 'for-nest') Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/cast/media_player.py", line 1031, in _handle_signal_show_view self._hass_cast_controller.show_lovelace_view(view_path, url_path) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 195, in show_lovelace_view self._send_connected_message( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 221, in _send_connected_message self._connect_hass( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 144, in _connect_hass self.send_message( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/init.py", line 148, in send_message self.launch( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/init.py", line 97, in launch self._socket_client.receiver_controller.launch_app( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/receiver.py", line 174, in launch_app self._send_launch_message(app_id, force_launch, callback_function) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/receiver.py", line 229, in _send_launch_message callback_function(True, None) File "/usr/local/lib/python3.12/site-packages/pychromecast/response_handler.py", line 71, in _callback on_success(callback_function=callback_function) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/init.py", line 186, in send_message_nocheck self._message_func( File "/usr/local/lib/python3.12/site-packages/pychromecast/socket_client.py", line 949, in send_app_message raise UnsupportedNamespace( pychromecast.error.UnsupportedNamespace: Namespace urn:x-cast:com.nabucasa.hast is not supported by current app. Supported are urn:x-cast:com.google.cast.debugoverlay, urn:x-cast:com.google.cast.cac, urn:x-cast:com.google.cast.media

[mattinglis]

Same thing happening here.

Casting works for a few days, then suddenly breaks with the above error.

The only solution is to restart home assistant, which is rubbish

[vhamburger]

I have the same problem - it worked fine for quite a while and now it is all sluggish and suddenly stops. Also - pushing any button is unbearingly slow (I mean, it can take more than 20 seconds to react - or longer. Getting this error as well (on 2024.8.3): Exception in _handle_signal_show_view when dispatching 'cast_show_view': ({'hass_url': 'redacted', 'hass_uuid': 'redacted', 'client_id': None, 'refresh_token': 'redacted'}, 'media_player.nesthub1969', '0', 'dashboard-nestbuero') Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/cast/media_player.py", line 1031, in _handle_signal_show_view self._hass_cast_controller.show_lovelace_view(view_path, url_path) File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 195, in show_lovelace_view self._send_connected_message( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 221, in _send_connected_message self._connect_hass( File "/usr/local/lib/python3.12/site-packages/pychromecast/controllers/homeassistant.py", line 166, in _connect_hass raise PyChromecastError() # pylint: disable=broad-exception-raised ^^^^^^^^^^^^^^^^^^^^^^^^^ pychromecast.error.PyChromecastError

[KavTV]

Same issue with the google nest hubs