3DORetrogem having trouble accessing 1440p.

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Rock Man
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3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

When the 3DORetroGem is connected directly in 2K resolution, I only see a blank screen. Tried on 3 different displays, same behavior! What am I missing?
Last edited by Rock Man on Sun May 03, 2026 3:26 pm, edited 3 times in total.
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Konsolkongen
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Konsolkongen »

RetroTink does not support a 1440p input. Do the screens you have tried support 1440p, many TVs do not.
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Rock Man
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

Konsolkongen wrote: ↑Sun May 03, 2026 8:04 am RetroTink does not support a 1440p input. Do the screens you have tried support 1440p, many TVs do not.
Sorry, I meant to add I get a blank screen when I try it raw. I'm already aware the Tink wasn't designed to bring out 4k from it's HDMI input, only 1080p.

I connected the RetroGem 3DO to the TV directly, yeah. My screen supports 1440p resolution, and I play in 2K on my Series X regularly.

1440 is the only resolution that gives me a blank screen when the 3DO Gem is connected directly. I tried it on three different displays that also use 1440p, and I got the same result; they're all LG models.

Screenshots from my display:

Image ImageImage
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orange808
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Re: 3DORetrogem having trouble accessing 1440p.

Post by orange808 »

Given where you are in troubleshooting, I would try an EDID emulator next.

Another option would be an external 4k video processor with more robust input bandwidth capabilities than the inexpensive community gaming scalers. That may not be feasible, due to budget. People here often misunderstand our community game scalers as "expensive"; they are not.
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Rock Man
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

orange808 wrote: ↑Sun May 03, 2026 3:31 pm Given where you are in troubleshooting, I would try an EDID emulator next.

Another option would be an external 4k video processor with more robust input bandwidth capabilities than the inexpensive community gaming scalers. That may not be feasible, due to budget. People here often misunderstand our community game scalers as "expensive"; they are not.
Are you talking about the option from output resolution that reads "From EDID !" doesn't that apply automatically or do i need to do something extra?

Forgot to mention I am using the Shiny version of the Gem. I didn't know that scalers like the Tink 4K are considered inexpensive by video enthusiasts! πŸ˜΅β€πŸ’«πŸ’€ Had to save a pretty penny to get mine.
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Re: 3DORetrogem having trouble accessing 1440p.

Post by bobrocks95 »

Rock Man wrote: ↑Sun May 03, 2026 2:16 pm
Konsolkongen wrote: ↑Sun May 03, 2026 8:04 am RetroTink does not support a 1440p input. Do the screens you have tried support 1440p, many TVs do not.
Sorry, I meant to add I get a blank screen when I try it raw. I'm already aware the Tink wasn't designed to bring out 4k from it's HDMI input, only 1080p.

I connected the RetroGem 3DO to the TV directly, yeah. My screen supports 1440p resolution, and I play in 2K on my Series X regularly.

1440 is the only resolution that gives me a blank screen when the 3DO Gem is connected directly. I tried it on three different displays that also use 1440p, and I got the same result; they're all LG models.

Screenshots from my display:

Image ImageImage
My LG B9 at the very least does not support 1440p from a PS2 Retro GEM either. But I haven't tried 1440p from another source before. It sounds like 1080p works fine?

Ideally since you have a Tink 4K, you should connect the 3DO to it and use one of the Direct Video modes on the GEM, which I said in the other thread.
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Rock Man
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

bobrocks95 wrote: ↑Mon May 04, 2026 1:05 am
Rock Man wrote: ↑Sun May 03, 2026 2:16 pm
Konsolkongen wrote: ↑Sun May 03, 2026 8:04 am RetroTink does not support a 1440p input. Do the screens you have tried support 1440p, many TVs do not.
Sorry, I meant to add I get a blank screen when I try it raw. I'm already aware the Tink wasn't designed to bring out 4k from it's HDMI input, only 1080p.

I connected the RetroGem 3DO to the TV directly, yeah. My screen supports 1440p resolution, and I play in 2K on my Series X regularly.

1440 is the only resolution that gives me a blank screen when the 3DO Gem is connected directly. I tried it on three different displays that also use 1440p, and I got the same result; they're all LG models.

Screenshots from my display:

Image ImageImage
My LG B9 at the very least does not support 1440p from a PS2 Retro GEM either. But I haven't tried 1440p from another source before. It sounds like 1080p works fine?

Ideally since you have a Tink 4K, you should connect the 3DO to it and use one of the Direct Video modes on the GEM, which I said in the other thread.
Works perfectly in 1080p

I've used Tink 4 on the Gem, it's compelling. I guess I wanted to get the 1440p working since it's part of the package that I bought. I didn't realize compatibility would be a thing, I thought it would just work like the Tink 4, Series X, PS4, Verizon, etc. In fact, this is the first device I tried that couldn't work on my dsiplay at that resolution, hence why I'm so surprised. Given that it's part of a feature set I want all of the features advertised. Not a dealbreaker if it doesn't work, just a little disappointing. Especially since I'm impressed by the mod overall! With any luck compatibility improvements to 1440p can be put in an update later.
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Re: 3DORetrogem having trouble accessing 1440p.

Post by PC Engine Fan X! »

On the Retrotink Pro 5X setup, there's a certain firmware that allows 1440p mode to be enabled/implemented (fw v3.0). It does work if you hook up the RT5X to a 4K gaming monitor or 4K TV setup. Of course, your mileage may vary depending on the A/V gear you have on hand.

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Re: 3DORetrogem having trouble accessing 1440p.

Post by bobrocks95 »

I'm forgetting off-hand if there's anything strange or out of spec about the 1440p mode- I'd also prefer to see it working, but I think in my case at least, my LG technically only accepts a custom 1440p 120Hz modeline.

If you have other 1440p devices working on that display, I'd ask in the Pixel-FX Discord if you're not opposed to joining. They're very responsive over there.
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

bobrocks95 wrote: ↑Mon May 04, 2026 6:12 pm I'm forgetting off-hand if there's anything strange or out of spec about the 1440p mode- I'd also prefer to see it working, but I think in my case at least, my LG technically only accepts a custom 1440p 120Hz modeline.

If you have other 1440p devices working on that display, I'd ask in the Pixel-FX Discord if you're not opposed to joining. They're very responsive over there.
Roger! I came to them before about a different topic but I'm going to ask them about this one.

What's a modeline?
PC Engine Fan X! wrote: ↑Mon May 04, 2026 2:46 pm On the Retrotink Pro 5X setup, there's a certain firmware that allows 1440p mode to be enabled/implemented (fw v3.0). It does work if you hook up the RT5X to a 4K gaming monitor or 4K TV setup. Of course, your mileage may vary depending on the A/V gear you have on hand.

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Re: 3DORetrogem having trouble accessing 1440p.

Post by bobrocks95 »

Rock Man wrote: ↑Mon May 04, 2026 9:56 pm
bobrocks95 wrote: ↑Mon May 04, 2026 6:12 pm I'm forgetting off-hand if there's anything strange or out of spec about the 1440p mode- I'd also prefer to see it working, but I think in my case at least, my LG technically only accepts a custom 1440p 120Hz modeline.

If you have other 1440p devices working on that display, I'd ask in the Pixel-FX Discord if you're not opposed to joining. They're very responsive over there.
Roger! I came to them before about a different topic but I'm going to ask them about this one.

What's a modeline?
Sorry, mixing my terms together. I just mean a custom resolution. As in I think 1440p 120Hz works but 1440p 60Hz doesn't on my LG.
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Re: 3DORetrogem having trouble accessing 1440p.

Post by Rock Man »

bobrocks95 wrote: ↑Tue May 05, 2026 1:40 am
Rock Man wrote: ↑Mon May 04, 2026 9:56 pm
bobrocks95 wrote: ↑Mon May 04, 2026 6:12 pm I'm forgetting off-hand if there's anything strange or out of spec about the 1440p mode- I'd also prefer to see it working, but I think in my case at least, my LG technically only accepts a custom 1440p 120Hz modeline.

If you have other 1440p devices working on that display, I'd ask in the Pixel-FX Discord if you're not opposed to joining. They're very responsive over there.
Roger! I came to them before about a different topic but I'm going to ask them about this one.

What's a modeline?
Sorry, mixing my terms together. I just mean a custom resolution. As in I think 1440p 120Hz works but 1440p 60Hz doesn't on my LG.
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