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Video cuts out when booting Coffin R52
http://forum.apollo-accelerators.com/viewtopic.php?f=5&t=1925
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Author:  8bit-Dude [ Wed 25 Jul 2018 15:38 ]
Post subject:  Video cuts out when booting Coffin R52

Hey there! I would like to request a bit of support for my Vampire 600 V2.

I was able to flash Gold 2.10 with a USB Blaster, and install Coffin R52 on a CF card (R53 download was corrupt).
Booting from a workbench floppy, I can see the partitions on the CF card and run SYSINFO to confirm that the Vampire is running fine.

But trying to boot from the CF card, I hear some kind of boot music and then the video signal cuts out.
My monitor says: "No input" for all signals: RGB, composite, and DigitalOut.

I have attached a photo of my setup, I would greatly appreciate any piece of advice!

Author:  leof [ Wed 25 Jul 2018 17:29 ]
Post subject:  Re: Video cuts out when booting Coffin R52

Coffin defaults to DigitalOut output. Did you connect the DigitalOut-output of the Vampire to a TV or monitor?
When I use H_D_M_I as one word this forum replaces it with DigitalOut?

Author:  8bit-Dude [ Thu 26 Jul 2018 01:05 ]
Post subject:  Re: Video cuts out when booting Coffin R52

Thanks for the reply!

I am using a TV with H.D.M.I; actually, I tested with 2 TVs in my house.
Both display the Gold 2.10 splashscreen (vamp girl), but then report "no signal" after boot.

Do you think I need to get hold of a monitor?

Author:  leof [ Thu 26 Jul 2018 14:27 ]
Post subject:  Re: Video cuts out when booting Coffin R52

I think if it displays the spashscreen, it should also display the Workbench screen in the same screenmode (640x480).
To try that you could boot without startup-sequence (keep both mouse buttons pressed, while turning it on) connected to an old scool Amiga monitor. Then remove or rename the screenmode prefs from System:Prefs/ENV-Archive/System/, reboot and set the screenmode to 640x480, 24 bit, save settings and try again through H.D.M.I.

Author:  8bit-Dude [ Thu 26 Jul 2018 15:56 ]
Post subject:  Re: Video cuts out when booting Coffin R52

Renaming to screenmode.prefs.old got me booted in PAL mode.
I then tried setting to 640x480 24 bit, but it says that it cannot write to "screenmode.prefs".

I tried renaming to screenmode.prefs before changing res, but still the same error message shows up.
When rebooting the amiga, I cannot see anything on DigitalOut and need to rename again to screenmode.prefs.old to get back into PAL.

Been trying various combinations, but I can't get a signal out of DigitalOut.
(Using "Test", I also cannot see anything out through DigitalOut)

Author:  8bit-Dude [ Thu 26 Jul 2018 16:17 ]
Post subject:  Re: Video cuts out when booting Coffin R52

I managed to write to the file screenmode.prefs, but screen is still blank after setting 640x480 24 bits. :-(

Author:  leof [ Thu 26 Jul 2018 18:22 ]
Post subject:  Re: Video cuts out when booting Coffin R52

Could there be a problem in the Vampire? Ask here: http://www.apollo-core.com/knowledge.php

Author:  8bit-Dude [ Fri 27 Jul 2018 02:29 ]
Post subject:  Re: Video cuts out when booting Coffin R52

OK, will do!

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