Problem with display and new kernel from beta BSP 2.7


we have bought a new Apalis iMX6 module and it has probably the old Linux BSP version 2.4. I need to change the splash screen first according your article and have started to compile the new beta BSP 2.7 with boot logo implemented. I have put this compiled kernel to boot partition with the help of U-Boot and have not changed the RootFS (because I’ve already installed many things there). The system was started but without display support (shows booting messages in text mode ans stops showing anything after GUI should be started). Everything is running there, I can connect to the board via SSH, but display (HDMI) is not working. I’ve compared old and new device trees and found nothing, only this was different for fb@0:


interface_pix_fmt = "LVDS666";
mode_str = "LDB-XGA";


interface_pix_fmt = "RGB666";

And this one for lcd@0:

pinctrl-0 = <0x0000004b>;


pinctrl-0 = <0x00000053>;

So I’ve recorded boot log from the terminal and attached them here: old and new.

You can see the continuous sending of

mxc_sdc_fb fb@0: 640x480 h_sync,r,l: 96,16,48  v_sync,l,u: 2,10,33 pixclock=25200000 Hz

It should be something with the display initialization, doesn’t it?
Could you please advice me how to get rid of this problem? Or may be could you send me working Linux images with the new kernel version?
Waiting for your reply.

With best regards, Alex

Unfortunately newer kernels are not per se compatible with the graphics stack of older BSPs. Please update according to the following article on our developer website.