I can’t answer, but saw something someone will probably be interested in. This occurred several times:
[ 15.512915] tegradc 15220000.nvdisplay: tegra_dp_get_bpp: vmode=0x10000000 did not specify bpp
[ 15.558974] tegradc 15210000.nvdisplay: blank - powerdown
I saw other EDID query succeed, but apparently this is failing color depth query. I don’t know how other EDID could succeed, but color depth be missing. You might look at a log from a successful boot, and look to see if you get any:
...did not specify bpp...
This makes sense because the error you see is essentially a color error.