No EDID is found for your monitor (and the hardware doesn't report any errors when trying to retrieve it). So you have to add the modes manually (xorg.conf or with xrandr, or maybe there is a gui option by now?) or pass a fake EDID to use.
No EDID is found for your monitor (and the hardware doesn't report any errors when trying to retrieve it). So you have to add the modes manually (xorg.conf or with xrandr, or maybe there is a gui option by now?) or pass a fake EDID to use.