Armbian on radxa zero doesn't produce picture on 1920x480 display

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Waveshare 7.9in Touchscreen Support?

@_dev-null was on the right track, and correct. adding drm.debug=0x02 to extraargs gets us [ 7.661478] [drm:dw_hdmi_phy_init [meson_dw_hdmi]] "400x1280" div10 [ 7.839700] [drm:meson_venc_hdmi_encoder_atomic_check [meson_dw_hdmi]] output_bus_fmt 2025 And if we do a quick lookup in the kernel for what output_bus_fmt 2025 is we get MEDIA_BUS_FMT_YUV8_1X24 and if we look in the kernel docs for dw-hdmi we see that it’s YCbCr 4:4:4 8bit So, a quick google search lead me to https://gist.gith…