eDP for Up Core 4 GB
we are trying to use the UpCore with an eDP display from BOE (the datasheet in attachment).
After the correctBIOS setup (Panel Support Enabled, interface eDP) the TFT Display is recognized (Win 10 Pro 64 bits can see it), Backlight is on, but nothing appears in the screen. Connections are correct. We realized them through a small adapter PCB: one side has the same CN6 connector of UpCore, while the other side has a simple 30 contacts FPC connector for the display. Traces on the PCB are calibrated to have the same lengths (LANE 0+ and LANE 0- have the same length L0, AUX+ and AUX- have the same lengths L1. L0 and L1 are slightly different). Total length of the connection is around 12cm.
All the drivers are installed (plus a one from Intel Graphics).
Can you help to understand where we are wrong?
Is there any known issue about eDP on UpCore?
Thank you very much in advance