DK2 output goes to HDMI and not to DSI display

[AndreyN]

Hi Folks,

I am building openstlinux-weston/st-image-weston image for stm32mp157c-dk2 board using newest Yocto distribution provided by STM. Everything works fine except the output goes always to HDMI (even if no cable attached). I can see bootloader splash image on DSI display. However, after couple of seconds it disappears and display remains black. If I attach HDMI display after boot is complete, I can see launcher application there. BTW, the same is happening with eglfs image.

I would appreciate any hints what might be wrong and how to debug/fix the problem.

Here is the build summary information and complete boot-log from serial console.

Regards,

Andrey.

[Bernard PUEL]

The information is given at the beginning of the chapter for the minor releases:

https://wiki.st.com/stm32mpu/index.php?title=STM32MP15_OpenSTLinux_release_note_-_v1.0.0&section=16#Minor_release_updates