https://bugs.freedesktop.org/show_bug.cgi?id=110371
--- Comment #3 from Nicholas Kazlauskas nicholas.kazlauskas@amd.com --- Looks like this is a bug in DRM itself with the parsing.
[ 1.325111] [drm] parse error at position 12 in video mode '1920x1080@59.94' [ 1.335096] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read.
It's hitting the "." as part of the video mode and erroring out because DRM doesn't consider it a valid character.