Comment by fisian | Hacker News Reader

Comment by fisian | Hacker News Reader

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I was interested in this board because of the HDMI input. However, I couldn't find anyone reviewing/testing that (last searched a few weeks ago).

I have another board (Khadas Vim4) with HDMI input. But the HDMI input only recently got support in their vendor provided Linux image and is finnicky. In the Armbian image I couldn't get it to work for more than a few frames of input video (tried with gstreamer and ffmpeg).

Additionally, I couldn't find any information on HDMI input in Linux (seems like everyone uses USB capture cards that use uvc with v4l2).

Hi, author here. That is something I intend to test. I know it works under Android (which I've yet to test), and under Linux I can see the audio part of it using lshw:

  *-sound:3
       description: rockchiphdmiin
       physical id: 6
       logical name: card3
       logical name: /dev/snd/controlC3
       logical name: /dev/snd/pcmC3D0c

I can't see anything interesting in the USB bus:

    $ lsusb -t
    /:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
        |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
    /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
        |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
    /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
    /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
    /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
    /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M

(other than the ludicrous bandwidth available, that is)

...but I am using the Armbian 5.x image, so maybe I am missing some driver or ARM DTD.

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