Allwinner H6 hdmi-audio and hotplug broken in le12

    Hello,

    after upgrading from le11 hdmi-audio and -hotplug are not working any more.

    I got this on the tv-box eachlink h6mini which is very similar to the supported tanix tx6.

    First I stayed on le11, but last week I isolated the problem to the patch:

    0049-drm-sun4i-dw-hdmi-Switch-to-bridge-functions.patch

    I think the problem is the late initialization of the ddc-en gpio-pins due to the use of the generic drm bridge connector in sun8i_dw_hdmi_bind(). But I'm too stupid to call drm_bridge_connector_init() - that does the ddc-en-thing - in time, so I removed that patch completely and got audio and hotplug back.

    Maybe someone with more knowleage on that subject can fix that patch, please? I'll do the testing.

    TIA

    Hey,

    I have Tanix TX6 where ddc-en is always enabled early enough. That being said, I recently fixed aforementioned patch in master branch since it was out-of-sync with latest upstream code. Can you try first nightly Tanix TX6 image to see if it works for you?

    Hello,

    thank you for looking into this and your answer. Unfortunately the application of 0041-drm-sun4i-dw-hdmi-Switch-to-bridge-functions.patch also leads to no audio over hdmi on my h6mini. Than I tried LibreELEC-H6.aarch64-12.2-nightly-20251216-877c02d-tanix-tx6.img.gz because I thought that I made something wrong with my source, but got also no audio.

    I've also have a problem with the media-cedrus-Implement-AFBC-YUV420-formats-for-H265.patch. My eachlink h6 mini does not support 8 Bit media in h265 only 10 Bit media like it is written on https://linux-sunxi.org/Cedrus#Supported_codec_matrix. So I had to remove that mode from cedrus_video.c

    Maybe eachlink h6 mini and tanix TX6 differ more than I thought.

    I meant LE13 nightly.

    Quote from hunderteins

    I've also have a problem with the media-cedrus-Implement-AFBC-YUV420-formats-for-H265.patch. My eachlink h6 mini does not support 8 Bit media in h265 only 10 Bit media like it is written on https://linux-sunxi.org/Cedrus#Supported_codec_matrix. So I had to remove that mode from cedrus_video.c

    This doesn't make sense. If 10-bit is supported then also 8-bit is supported. It actually seems that you experience other way around. That patch introduces AFBC format support for H265, which is actually the only way to support 10-bit output currently (other 10-bit formats are not implemented).

    In any case, if you remove that patch, you'll get only 8-bit format for 10-bit video. I've never heard that specific H6 device would have issues decoding with H265. Maybe it is some lower performance version of H6.