Is the eDP output (I-PEX connector, not the Alt-Mode on USB-C) enabled on the Ubuntu Desktop firmware Khadas provides on the Edge Documentation page ? When listing /dev/class/drm the closest match is card0-DP-1, if I’m not mistaken this refers to the Alt-Mode Displayport output on the USB-C connecto…

I finally managed to get eDP working on linux. The only change required was to make the appropriate changes to the DTS file, compile it to a DTB and replace it in /boot/dtb. My DTS file for the panel i’m using is here . The changes I made: Enable the eDP panel Configure backlight with PWM mapped t…

[image] recre8: Is the eDP output (I-PEX connector, not the Alt-Mode on USB-C) enabled on the Ubuntu Desktop firmware Khadas provides on the Edge Documentation page ? No, the eDP interface is not enabled.

@numbqq Can you help with which files need to be modified to get eDP working on Ubuntu. I used the fenix script and managed to build a working Ubuntu firmware image, but I have no idea which files need to be modified to enable eDP. Can I simply compile a new DTB and replace the existing ones? Alter…

Hello @recre8 Maybe you can refer this topic, the dts should be the same to android. [image] How to enable eDP panel on EDGE-V Edge Hi there, can anybody give me some hints how to use an eDP-panel with the EDGE-V and Android? I found this document http://rockchip.wikid…

Hi @numbqq Thanks for the response. I do have an eDP panel (LP097QX1), but I’m awaiting the last components to build the backlight driver. I managed to change the DTS file and build a new DTB. (eDP enabled and mapped to VOPB, HDMI switched to VOPL). After replacing the DTB in /boot, I now have a ca…

Hi @numbqq I made some progress with the eDP, although I don’t have anything displaying yet. I have enabled the eDP and mapped VOPB to eDP in the DTB. Here is my DTS file . I can clearly see a difference in the kernel log with the panel connected and with the panel disconnected . When disconnected …

eDP on Ubuntu Firmware

Edge

numbqq August 22, 2019, 7:35am 5

Hello @recre8

Maybe you can refer this topic, the dts should be the same to android.

By the way, do you have the eDP panel ?