port-evbppc/59303: Framebuffer colours look funny on PAL Wii with SCART output

[nia%pkgsrc.org@localhost]

>Number:         59303
>Category:       port-evbppc
>Synopsis:       Framebuffer colours look funny on PAL Wii with SCART output
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-evbppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Apr 16 13:30:00 +0000 2025
>Originator:     nia
>Release:        current
>Organization:
The RedBSD Foundation, Inc
>Environment:
>Description:
On my Wii, which is a PAL Wii using SCART output, the framebuffer initially looks fine. Then as the kernel finishes attaching every device (and presumably reconfigures the framebuffer), everything turns red. Probably it's assuming a composite output and not RGB, so the signals are wrong (or something).

Would also be very nice to be able to use 60 Hz RGB on a PAL Wii, which is normally supported while running Wii software and hurts my head a lot less due to less-noticable flicker.
>How-To-Repeat:

>Fix: