480p bug fix for later Wii revisions?

seriffic · Jan 10, 2024

Hi all,
I learned very recently that later Wii revisions still have the 480p video output bug, and that the 480p fix in launchers like USB Loader does not correct it.

This is fairly unfortunate as I own an RVL-CPU-40 Wii, and I can notice the slight blurring of pixels, especially when blown up by my OSSC.

I was wondering if it is still possible to fix this via software? What does the 480p pixel fix do that affects the video output chain, and could it be replicated on newer Wiis?

Thanks!

CheeseBurgerwithLove · Jan 10, 2024

I think USBL GX already has an option to correct that bug and I'm not sure if Wii Flow does too.

Ouaz · Jan 10, 2024

I didn't know the 480p fix didn't work for later Wii revisions.

Maybe you should ask to blackbOx if there's a workaround on the USB Loader GX thread: https://gbatemp.net/threads/usb-loader-gx.149922/page-1459

ChibiMofo · May 11, 2024

They don't work with later revisions because later versions already have it built in. No one has worked on such a "fix" because it was discovered that Nintendo had made a software fix to later revs of the Wii that they COULD have made work on earlier version but chose not to. Whatever the issue is above, it is not the same exact issue because it was knowledge of how the later revs of Wii worked that allowed people to hack a fix to the earlier ones. Thus the fix couldn't possibly fix later revs as they already have it. Since no one is aware of such an issue, no one is working on a solution. I wouldn't expect that to change given that this was all covered in detail 4 years ago and no one whined then about later revs of Wii having worse quality and, even if that had been noted, it is unlikely that the same kind of fix could be found for it given the nature of the original fix.

Extrems · May 11, 2024

ChibiMofo said:
They don't work with later revisions because later versions already have it built in.

It turns out they didn't after all.

ChibiMofo said:
No one has worked on such a "fix" because it was discovered that Nintendo had made a software fix to later revs of the Wii that they COULD have made work on earlier version but chose not to.

There never was a software fix by Nintendo.

ChibiMofo said:
Whatever the issue is above, it is not the same exact issue because it was knowledge of how the later revs of Wii worked that allowed people to hack a fix to the earlier ones.

It was not. I simply fuzzed a particular register.

ChibiMofo said:
Thus the fix couldn't possibly fix later revs as they already have it.

It doesn't fix them because the register definitions changed.

ChibiMofo said:
Since no one is aware of such an issue, no one is working on a solution.

It is being looked into, but things are looking dire.

480p bug fix for later Wii revisions?

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