Hi, I've been trying to make this one work, but in vain, so far... Either using qemu or in real hardware, all failed when booting from UEFI.
From qemu's stdio I know that the boot has been completed successfuly, but
it seems like fb-drv was unable to support current default mode from EFI Framebuffer boot (or it is trying to switch to some other mode, and failed?).
I was using standard ex_fb_spectrum_cc, with x86-fb.io, x86-fb.cfg and x86-legacy.devs, all loaded by grub2 as Multiboot2 and Module2
Everything was fine if booted using BIOS, but I haven't try on UEFI mode with CSM.
Can you give me a hint of what to try next, please?
Thanks in advance :-)