AM625: How to disable the booting display layer

Hi Brian,

Just to confirm, are you talking about disabling the psplash bootup screen?

Regards,
Krunal

Hello Krunal,

I used tiny rootfs and removed splash screen.

IMAGE_FEATURES_remove = "splash"

I did know the psplash bootup screen yet.

Regards

Brian,

Hi Brian,

Are you still running into the same issue with splash disabled? If yes, please share an image of your output and what you are trying to remove. 

Regards,
Krunal

Hello Krunal,

I want to disable the display layer

mys drm_app is displayed:

If my drm_app is disable, the black image will be displayed instead of the arago project image.

Regards,

Brian

Hello Krunal,

Do you have any update?

At the moment, I disable it by remove the framebuffer console and logo in kernel.

regards,

Brian

Hi Brian,

I am internally checking with our team and my initial inspection tells me it's something to do with a initd script. We get the systemd/filesystem from the Yocto community and most probably some script is writing framebuffer to fbdev. Have you checked online for similar issue with fbdev? 

Regards,
Krunal 

Hello Krunal,

Have you checked online for similar issue with fbdev?

-> Not yet.

This image  will be displayed by writing a string to framebuffer console /dev/fb0. At the moment. I did not know exactly what services.

Regards,

Brian

Hi Brian,

Could you change the following settings in the default Kernel config:

-----------------------------------------------------------------

 # Console display driver support                                  

 #                                                                 

 CONFIG_DUMMY_CONSOLE=y                                         

 CONFIG_DUMMY_CONSOLE_COLUMNS=80                                   

 CONFIG_DUMMY_CONSOLE_ROWS=25                                      

 CONFIG_FRAMEBUFFER_CONSOLE=y                                      

 CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION=y                  

 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y                       

 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y                             

 # CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set         

 # end of Console display driver support

-----------------------------------------------------------------

CONFIG_LOGO=y                             

 CONFIG_LOGO_LINUX_MONO=y                  

 CONFIG_LOGO_LINUX_VGA16=y                 

 # CONFIG_LOGO_LINUX_CLUT224 is not set    

 CONFIG_LOGO_BEAGLE_CLUT224=y              

 # end of Graphics support 

-----------------------------------------------------------------

In summary, the above settings are set to yes and try changing them to no to see if it has any impact.

Regards,

Krunal

Hi Brian,

I believe it is one of the getty services: https://wiki.archlinux.org/title/getty

Regards,
Krunal