Problem by HDMI-Output

With my 2 Banana Pi M3 I have a Problem with the Picture on my TV. The Screen sometimes change to Pink or to turquoise. Change the HDMI-Cable and Ports don’t work. The Support of my TV say that it is a Problem when the Banana Pi change the Videosettings. (RGB/YCbCr ??) Can I Fix these Seetings?

Probleme exit at Android and Linux.

I hope somebody unterstand me. My Englisch is very bad. Sorry

How can I set the seetings (RGB 4:4:4 or Ycbcr 4:4:4) ??

Here are Pictures of my Problem. Please help me. HDMI-Cabel is ok. TV is ok. I had the same problem on my PC . There I was able to solve it with the setting Full RGB .

You use an HDMI to DVI converter, right? Solution then is ‘easy’: Forcing HDMI on M3 :wink:

No i use only a HDMI-Cable


there are also officells suppport? I have a big problem. I can’t use my Board.

HI: According to what you said, you were using HDMI-Cable instead of HHDMI to DVI converter, weren’t you? Have you tried any other monitors ?

Hi, I bought a banana pi m64 and get the green/pink screen or inverted colors with hdmi, 3 more hdmi cables. raspbian/android6.0/windows 10 iot.

it’s a problem with old philips and sony bravia tv because they support hdmi 1.2, and the hdmi 1.2 not support the YCbCr color, just the RGB, it’s causes a hdmi handshake/synchron problem.

Please add a function to the config file, where can we set the hdmi pixel encoding type like in the raspberry pi: "hdmi_pixel_encoding Force the pixel encoding mode. By default it will use the mode requested from edid so shouldn’t need changing.

         hdmi_pixel_encoding=0 default       (limited for CEA, full for DMT)
         hdmi_pixel_encoding=1 RGB limited   (16-235)
         hdmi_pixel_encoding=2 RGB full      ( 0-255)
         hdmi_pixel_encoding=3 YCbCr limited (16-235)
         hdmi_pixel_encoding=4 YCbCr full    ( 0-255)"

This setting is a solution for old sony&pihilips tv -s with raspberry, nvidia or ati/amd pc videocards

Well known since ages but those Banana guys don’t care (or they’re not able to do software). I found it the first time mentioned for their Banana Pi M3:

Armbian guys made it adjustable for another A64 board with config file (parsed by boot script and patching DT on the fly):

I found the “hdmi_cts_compatibility = 1” too, ( HDMI Compliance Test Specification ), but i’m not sure this is solution for color problems.

And i use android now, in emmc, how can i access the /boot/ folder or partition?

It is and problem is the same with all more recent Allwinner CPU. This is well known (and ignored by manufacturer) since 2015 :slight_smile:

No idea about Android, I would believe your only hope is Android community build for A64 devices: but if this Android build is made in the same way as for H3 then last paragraph of first post here might help:

now, i tried to edit the .bin => .fex files, but with linux on sdcard, i can’t see eMMC storage… if i burn android to SDcard, i can’t edit, because windows see it to raw data what can i do now? :slight_smile:

good board, shit support/developers, nice

Blu-ray players, gaming consoles, and smart TVs all use HDMI cables to send high-definition video and audio to a TV or monitor. An “HDMI error unable to display video” error message may appear when an HDMI cable is not functioning properly. Gaming consoles and televisions can be connected using the industry-standard HDMI visual connector. There are numerous causes for it, including issues with the HDMI cable, the device’s inability to recognize the HDMI signal, or the device’s HDMI port.

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The “HDMI error unable to display video” message can occur when HDMI cables, used for high-definition video and audio, face issues. Possible causes include problems with the HDMI cable, the device’s failure to recognize the HDMI signal, or issues with the device’s HDMI port. This error may affect connections between Blu-ray players, gaming consoles, and smart TVs, which commonly use HDMI for transmitting audio and video signals.