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Old 04 January 2015, 00:15   #1
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Cybergraphx and GRex 1200

Hi all,
I have a new issue with my GRex 1200 PPC that I am trying to setup. It is in the screenmode of 320x240. So here is my issue.

I cannot get the screenmode to work on my computer monitor. Hence any of my monitors. I have tried 4.

Here are my monitors. SamsungT240HD, Sceptre 19", AsusQ278e, and my Hitachi tv with VGA input. I have 3 amiga's with graphics cards.

1 BVision (Works in 320x240)mode in all monitors.
1 Mediator tower with Voodoo 3 3000 (works in 320x240) in all monitors
1 GRex Tower with Voodoo 3 3000 cannot get 320x240 mode to work in any monitor.

Now I know my BVision uses Cybergraphx as well so I thought I would adjust my GRex (which is using Cybergraphx 4.3) to the same settings. Would not work at all.

Does anyone have a GRex 1200 PPC setup with a working 320x240 screenmode that could possibly share some settings?

I have been my head for the past 3 days trying to figure this out.

Please help.
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Old 04 January 2015, 21:27   #2

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Join Date: Jan 2013
Location: Moscow / Russia
Posts: 733
Have you played with CGXMon setup?
If the card works, the only thing needed is to get the correct timings and probably set scan doubling (in other words it will be a 640x480 screen with 2x2 pixels)
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Old 05 January 2015, 03:19   #3
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Greetings Michael. Yes I have. Both of my systems that use Cybergraphx are setup with the Samsung 20(I believe LGS). And as I stated before, it works with my BVision just great. And that monitor mode works great for all of my monitors. And the mhz range it does works covers all my monitor range.

Thanks for your idea, please let me know if you have any other ideas.
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