I am thinking about MDA, CGA(RGB), CGA (COMPOSIT) on my EURO-PC. Is it possible to get composit out of the gfx-chip?

dr.zeissler wrote on 2022-05-29, 13:10:

I am thinking about MDA, CGA(RGB), CGA (COMPOSIT) on my EURO-PC. Is it possible to get composit out of the gfx-chip?

tereg posted this video in this very thread some time ago: https://www.youtube.com/watch?v=p-E7Qh1hnuM

Is there a way to boot straight from isa slot vga card. I don't have cga monitor but I have Trident tvga8900c isa card.
Also I can't find English manual for the machine does anyone have a link to manual?

I gather if you disable the internal GPU from the BIOS, it should boot from an external GPU.

There is no key shortcut to boot from external?
I can't get to bios since I don't have cga monitor 😁

Kekkula wrote on 2023-05-10, 17:28:

There is no key shortcut to boot from external?
I can't get to bios since I don't have cga monitor 😁

If you study this video of the bios, you can do it blind. https://www.youtube.com/watch?v=qgv-CWJFU2s

Thanks.
Found this site
https://oldcrap.org/2018/03/11/schneider-euro-pc/
It says push four times down then pgdn and enter
Does the machine boot without battery. I had corroted battery on board so I removed it and cleaned area. No traces seems to be damaged, but there are many beep codes when powering on the machine.
Machine seems to go to bios after pressing ctrl alt esc and when I press enter machine seems to reboot. But since i can't get any output it hard to know what is happening 😉
Edit: Problem might be as simple as the machine doesn't have a battery so bios settings doesn't get saved. So next step will be replacing battery.
Also wondering, I have amiga rgb to hdmi board, would it be possible to get it to work with xt machine?

Kekkula wrote on 2023-05-10, 18:12:

Also wondering, I have amiga rgb to hdmi board, would it be possible to get it to work with xt machine?

The Amiga uses analog RGB (like VGA). CGA, EGA and Hercules use digital RGB. If you can't reconfigure your RGB to HDMI converter, you will get 8 colors at max from a video card with analog output, if it works sensibly at all.

Kekkula wrote on 2023-05-10, 18:12:

Thanks. Found this site https://oldcrap.org/2018/03/11/schneider-euro-pc/ It says push four times down then pgdn and enter Does […]
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Thanks.
Found this site
https://oldcrap.org/2018/03/11/schneider-euro-pc/
It says push four times down then pgdn and enter
Does the machine boot without battery. I had corroted battery on board so I removed it and cleaned area. No traces seems to be damaged, but there are many beep codes when powering on the machine.
Machine seems to go to bios after pressing ctrl alt esc and when I press enter machine seems to reboot. But since i can't get any output it hard to know what is happening 😉
Edit: Problem might be as simple as the machine doesn't have a battery so bios settings doesn't get saved. So next step will be replacing battery.
Also wondering, I have amiga rgb to hdmi board, would it be possible to get it to work with xt machine?

Yes the machine will boot without battery and will retain the settings while powered on and through resets. But it will complain and beep for all wrong settings until they are corrected.

Keep in mind though that depending on the damage done from the battery you might not be able to save the BIOS options until broken connections have been repaired.

I just can't find the right compo to get the external video signal out. Might be the video card I'm using. It works fine with my hyundai xt clone, but I couldn't get it to show picture from my ibm 486 machine. So I'm thinking it might have some issue if there is integrated video chip on board.
So I'm considering options how to get video out from the original jack. Since I don't have cga monitor I'll have to use some converters.

https://www.serdashop.com/CGA2SCART-PRO
This could be the easiest solution, but I don't know if my flat tv supports scart rgb mode.

https://github.com/c0pperdragon/Amiga-Digital … /direct_adapter
I already have this amiga adapter but I don't think I can reroute signals from it.

https://github.com/hoglet67/RGBtoHDMI
This would probably be the best option, but I don't know witch version should I get 😁

Kekkula wrote on 2023-05-17, 10:52:

I just can't find the right compo to get the external video signal out. Might be the video card I'm using. It works fine with my hyundai xt clone, but I couldn't get it to show picture from my ibm 486 machine. So I'm thinking it might have some issue if there is integrated video chip on board.

The trick is to configure the onboard video card as monochrome (if it can't be disabled), then you can add an external colour adapter.

Scali wrote on 2023-05-17, 11:18:

The trick is to configure the onboard video card as monochrome (if it can't be disabled), then you can add an external colour adapter.

I believe it can, the values for internal video are mono/color/disabled. Other models (can't remember if it's EuroPCII, EuroXT or both) had a "special" option for the external adapter.