Black chromecast screen

[SjoerdHekking]

Hi reader,

I am new here, so I am sorry if I seem vague when describing the issue:

Anyway, I got a nice .mkv file, roughly 10GB in size. More info here:

• Video
  
• Title 4K HEVC SDR
  
• Codec HEVC
  
• Profile Main 10
  
• Level 150
  
• Resolution 3840x1610
  
• Aspect ratio 2.40:1
  
• Interlaced No
  
• Framerate 23.976025
  
• Bitrate 6742 kbps
  
• Bit depth 10 bit
  
• Video range SDR
  
• Video range type SDR
  
• Color space bt709
  
• Color transfer bt709
  
• Color primaries bt709
  
• Pixel format yuv420p10le
  
• Ref frames 1
  

Whenever I stream this to my Windows 11 computer, or Android phone, it works great, transcoding happens, and I can watch it fine. However, when streaming to Chromecast, nothing happens, just a black screen and a play button that doesn't respond on the remote's end.

Does anyone have a clue?

I am running a healthy xeon, 32GB of ecc ram, gigabit connection, P4000 Quadro.

[TheDreadPirate]

Could you share with us your jellyfin and ffmpeg logs (if those exist)? Upload them to pastebin and share the link here.

[SjoerdHekking]

Could you share with us your jellyfin and ffmpeg logs (if those exist)?  Upload them to pastebin and share the link here.

https://pastebin.com/RMGi20qm

This is the ffmpeg log, but besides that, I don't have a jellyfin log that contains errors, just the usual queries for optimizing the database(s), and similar scheduled tasks.

[TheDreadPirate]

It is definitely transcoding and more than fast enough.

What kind of Chromecast are we talking about? A Chromecast with Google TV? Or an older "dumb" Chromecast?

[SjoerdHekking]

It is definitely transcoding and more than fast enough.

What kind of Chromecast are we talking about?  A Chromecast with Google TV?  Or an older "dumb" Chromecast?

Hi there, thanks for your reply. A chromecast 2018 model. Not ultra. Not TV. Not 4K. Just a basic 2018 model, that "normally" works perfect. According to Google's datasheets it should accept H.264 with AAC... Weirdly enough, the log says it's creating 4k~ resolution, while the chromecast should broadcast and only allow FHD...? Maybe it's the chromecast?

[TheDreadPirate]

I'm not sure how device compatibility works when you are casting to an older chromecast. I do know that Jellyfin's casting is jank AF. It may not be correctly relaying the Chromecast's limitations (1080p60) to jellyfin.

[SjoerdHekking]

I'm not sure how device compatibility works when you are casting to an older chromecast.  I do know that Jellyfin's casting is jank AF.  It may not be correctly relaying the Chromecast's limitations (1080p60) to jellyfin.

In that case, I can safely assume it's chromecast's fault. Thanks.