missing file association;
tce-load -wi does not call xf86-video-ati (firmware-radeon).
but the important thing is calling grapshics-x.x-tinycore related file.
As the 2nd command
tce-load -wi firmware-radeon (when prompted, console screen resolution increases:)
suggested ;
"xf86-video-horse" + "firmware-radeon" or "firmware-radeon" + "xf86-video-horse"
file call association needed to be created!
likewise another problem;
"xf86-video-amdgpu" + "firmware-amdgpu" or "firmware-amdgpu" + "xf86-video-amdgpu"
file call association needed to be created!