Cover art for mp3?

Under what conditions will the dashboard show cover art for an mp3 song? I’m sure that the cover art is embedded, but I’ve tried folder art, too. I’ve tried uploading local media and from DNLA on the Synology, but never can see the cover art. Streaming services show the cover art fine. Is it possible?

What card are you talking about when saying “dashboard show cover”?

I’ve tried the built-in media control card (media_player entity) and the mini-media-player card, both on Lovelace. I now understand that mini-media-player is a card based on the same media_player entity, so I’m guessing that if the built-in media control card doesn’t find the cover art, mini-media-player won’t either.

When I browse from the media tab in the main menu, I see cover art:

But the Lovelace media control card does not show it:

image

When I browse media from the card itself, I see the cover art again, but when I play it, still the blue on the card itself.

I do not see covers:

This is a local media folder added by:

homeassistant:
  media_dirs:
    music: /music

in configuratiuon.yaml & by this option in “docker run” command:

-v /home/media:/media

These mp3 & flac files have embedded covers.

Also, I wonder what the integration is you are using to play local media files?
I mean this:
image

May be this is related to your question:
covers are not displayed for local files played by a service call:

service: media_player.play_media
target:
  entity_id: media_player.kodi_rpi
data:
  media_content_type: "audio/mp3"
  media_content_id: "media-source://media_source/music/Zacarias Ferreira - Me Sobran Las Palabras.mp3"

Just created this issue.
Tried to play a local file by Kodi integration; the Kodi itself is located on some RPi.