Clear background in GNU/Linux (was: Request for a feature)

[Paul Menzel]

Dear Brian,


Am 12.06.20 um 02:33 schrieb Brian Kaye:
> I have been able to have grub2 display a background image on my
> fedora linux system. It works as long as I don't use secure boot.
> After I have my selection the image remains on the screen until the
> boot is complete and I see a login screen. Fedora adds a spinner
> during this process. What I would like to see is the framebuffer
> cleared to black (zeroed??) similar to the code in
> gfxterm_background.c
>    
>
> if (grub_gfxterm_background.bitmap)
>      {
>        grub_video_bitmap_destroy (grub_gfxterm_background.bitmap);
>        grub_gfxterm_background.bitmap = 0;
>        grub_gfxterm_background.blend_text_bg = 0;
>
>        /* Mark whole screen as dirty.  */
>        grub_gfxterm_schedule_repaint ();
>      }
>
>
> Just don't know where to put the code and what the real code would be.

I do not fully understand, what you want to accomplish.

But, you can disable ACPI BGRT in the Linux kernel with by adding 
`bgrt_disable` to the Linux command line.

Otherwise, you should probably look into Plymouth, on how to configure 
the background in GNU/Linux [1].

[…]


Kind regards,

Paul


[1]: https://wiki.archlinux.org/index.php/plymouth