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My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 4:51 pm
by Ripthorn
Kinda true...

Here's the thing: if I boot a game and chooses progressive scan, the gamecube just hangs and display an image with the half brightness. Interlaced mode works fine, but if I boot the swiss first, leave the force progressive off and try again the progressive mode selection, progressive scan will work fine :|

Right now I only own one USA game (Zelda WW), So I can not test other games to see if this problem repeats. All my other games are Japanese, they all work in progressive scan through Swiss.

A strange thing that I noticed is that the Swiss always force NTSC color in composite and s-video, if I boot a game without it, the system stay in PAL-M.

My GC is a DOL-002 and I use a D-Terminal cable with RCA adapter.

So does anyone know of a possible fix for this?

Re: My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 5:00 pm
by Extrems
This is normal for PAL-M, post-launch games will crash on progressive scan. Just use Swiss.

Re: My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 5:34 pm
by Ripthorn
Extrems wrote:This is normal for PAL-M, post-launch games will crash on progressive scan. Just use Swiss.
This is really weird, I thought only the PAL gamecube had this problem, not PAL-M. Now I can not use RGB and neither 480p :cry:

I know, I can use Swiss but I hoped I would not have to use it for everything, It's a pain in the ass to always swap discs.
Does the GCvideo or force progressive scan on modchips will help?

Re: My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 5:38 pm
by Extrems
GCVideo does nothing for software problems. Modchips are less compatible.

Re: My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 6:50 pm
by Ripthorn
Oh well, it seems to be possible to put Swiss on Qoob Pro flash memory, better than swap discs.

Anyway, thanks for the help, Extrems

Re: My Gamecube does not support progressive scan

Posted: Sun Dec 03, 2017 9:02 pm
by novenary
You should use iplboot instead of flashing Swiss to the Qoob. You can also flash an NTSC IPL to it.

Re: My Gamecube does not support progressive scan

Posted: Mon Dec 04, 2017 3:22 am
by Ripthorn
Streetwalker wrote:You should use iplboot instead of flashing Swiss to the Qoob. You can also flash an NTSC IPL to it.
Can you point where I can get more information about the iplboot and IPL flash?

Re: My Gamecube does not support progressive scan

Posted: Mon Dec 04, 2017 8:23 am
by novenary
https://github.com/Streetwalrus/iplboot
You can find the flashing tool in the Qoob thread with the latest official update.