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>GPU boots first and then brings up the CPU. IS that the reason for the full screen of colors before you see the boot sequence? Never thought about that.
by officeplant 2y ago
>GPU boots first and then brings up the CPU.
IS that the reason for the full screen of colors before you see the boot sequence? Never thought about that.
- jazzyjackson 2y agoYep. The "color gamut" display, as you call it, is a GPU test pattern, created by start.elf (or start4.elf, or one of the other start*.elf files, depending on what is booting). That 3rd stage bootloader is run by the GPU which configures other hardware (like the ARM cores and RAM split). https://forums.raspberrypi.com/viewtopic.php?t=336516 https://forums.raspberrypi.com/viewtopic.php?t=336516