Hi,
I've got an Odroid C2 with a weird display that I'm trying to get working on mainline.
https://www.waveshare.com/wiki/11.9inch_HDMI_LCD
If I do a base install the display comes up (with a magenta background so there's a YUV issue) so I know it works.
If I upgrade to the mainline kernel the display stops working. I can't find any docs on setting the modeline for non-X sessions.
In the stock Odroid kernel there's a boot.ini you can muck with, is there something like that for the mainline kernel?
Thanks.