Tiny Core Linux

Tiny Core Base => Raspberry Pi => Topic started by: MrPorcine on July 04, 2026, 08:02:41 PM

Title: piCore 16 and a splash screen
Post by: MrPorcine on July 04, 2026, 08:02:41 PM

This is a pi3. I'd like to get a splash screen very early in the boot process. /dev/fb0 doesn't seem to appear until about 1/2 way through tc-config. Is /dev/fb0 generated by udev? Is there any way of putting up a splash image before fb0 appears? Or a way of getting fb0 going very early? Currently I have many seconds (~10) before anything shows on the screen.

Title: Re: piCore 16 and a splash screen
Post by: patrikg on July 05, 2026, 01:04:20 AM

First splash screen would be the rainbow, you can disable that first with add one line into config.txt see this doc how to do it.
https://www.raspberrypi.com/documentation/computers/config_txt.html#disable_splash (https://www.raspberrypi.com/documentation/computers/config_txt.html#disable_splash)

Title: Re: piCore 16 and a splash screen
Post by: MrPorcine on July 05, 2026, 07:15:44 PM

It turns out to be related to the early Pi 3B+ boards. When I use the same SD card on the late version, the rainbow shows up and the framebuffer is available earlier in the boot. It still takes over 10 seconds to completely boot. Since the rainbow shows up almost immediately after one turns on the device, it gives the operator some feedback that something is happening. My custom splash screens show up more quickly as well.