Green screen artifacts and pixelation on TV output using Raspberry Pi with Anthias

1

Hi,

We’re using Anthias on a Raspberry Pi 4 Model B Rev 1.5, and we’re getting recurring display issues only during video playback. The Anthias splash screen and boot sequence look perfectly fine (crisp and color-accurate), but as soon as the player starts showing MP4 videos, the screen becomes partially green and pixelated, as shown in the attached images.

System Info:

  • Device Model: Raspberry Pi 4 Model B Rev 1.5

  • Anthias Version: master@5d44ac8

  • Free Space: 40G

  • Memory: Total: 3614 MB / Used: 769 MB / Free: 122 MB / Available: 2745 MB

  • Connection: HDMI (no adapters) + Edision HD Modulator (Hdmi to DVB-T)

  • Instaled in the SD card with Balena - not with rasp OS

Issue description:

  • The splash screen and interface look perfect on boot.

  • The issue starts only when MP4 videos begin playing (no streams, all content stored locally on the Raspberry Pi).

  • Video output turns green with digital block artifacts.

Additional observation:
Since the splash screen displays perfectly, it seems the HDMI signal is fine — suggesting the issue lies in GPU video decoding, codec settings, or hardware acceleration.

Thanks in advance for your help!

green and pixelated
green and pixelated590×498 40.4 KB

2

@Bruneira, it looks like the Anthias version installed on your Pi 4 is quite old. Let me check on this one.

3

@nicomiguelino could you please help me updating from that version?

4

@Bruneira, let me help you with that, Would you be able to send me your Balena device ID via direct message (not in this thread)? Direct messages are possible in this platform.

You could You can obtain your device ID by going to the web interface, going to Integrations, and copying the value of Device UUID. That way, I could do an update your device.

Otherwise, you could download the image from the v0.20.4 release page, which I could further assist you with if you wish to go down this path.

5

Great, @nicomiguelino ! i would send the device uuid but maybe because i just created this account, there is no direct message option for me. I suggest you send me your email.

6

@Bruneira, have you tried going to Profile - nicomiguelino - Anthias Forum? From there, you can click “Message :envelope:“ on the top right corner of the page.

7

image
image2544×1268 157 KB

8

@Bruneira, apologies for that. I changed permissions so that you’ll be able to send messages. You could try refreshing the page. Please let me know if you’re still not able to private messages (PMs).