Going from VGA back to std 15.6khz

Methanoid · 13 July 2007, 16:00

I'm getting stuck trying to get an A1200 which was setup to boot on a PC VGA monitor to boot on anything!!

It seems mt TFT wont cope with Amiga VGA mode (ie wont sync down enough) but my TV cannot cope with the HD being set to boot in VGA.

I managed to boot into a normal 15.6khz mode using WB3.0 floppy and moved the monitors from DEVS: Monitors back to Storage:Monitors but even with nothing in there it still boots up in I think VGA.

I know its something idiotic but I am struggling to recall. Its been 10 years or more since I really used a REAL Amiga.

Can someone help (without laughing TOO much!!) ??? Thanks!

Sune Salminen · 13 July 2007, 16:09

Maybe the startup.sequence file is starting something.

coze · 13 July 2007, 17:06

you must have saved a vga screenmode. delete prefs/env-archive/sys/screenmode.prefs

BippyM · 13 July 2007, 17:34

boot with no startup-sequence and remove all monitor drivers out of devs and also check startup-sequence and user-startup in sys:s/

You might also need to delete screenmode prefs from sys

refs/env-archive

(note this is from memory, so don't quote me or blame me if something is a little wrong)

13 July 2007, 16:00	#1
Methanoid Retired Quartex Sysop Join Date: Sep 2001 Location: Roman Verulamium Age: 58 Posts: 1,873	Going from VGA back to std 15.6khz I'm getting stuck trying to get an A1200 which was setup to boot on a PC VGA monitor to boot on anything!! It seems mt TFT wont cope with Amiga VGA mode (ie wont sync down enough) but my TV cannot cope with the HD being set to boot in VGA. I managed to boot into a normal 15.6khz mode using WB3.0 floppy and moved the monitors from DEVS: Monitors back to Storage:Monitors but even with nothing in there it still boots up in I think VGA. I know its something idiotic but I am struggling to recall. Its been 10 years or more since I really used a REAL Amiga. Can someone help (without laughing TOO much!!) ??? Thanks!

13 July 2007, 17:34	#4
BippyM Global Moderator Join Date: Nov 2001 Location: Derby, UK Age: 48 Posts: 9,355	boot with no startup-sequence and remove all monitor drivers out of devs and also check startup-sequence and user-startup in sys:s/ You might also need to delete screenmode prefs from sysrefs/env-archive (note this is from memory, so don't quote me or blame me if something is a little wrong)

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13 July 2007, 16:09	#2
Sune Salminen Dinamáquina Join Date: May 2002 Location: BH/Brasil Age: 49 Posts: 370	Maybe the startup.sequence file is starting something.

13 July 2007, 17:06	#3
coze hastala vista winny vista Join Date: Feb 2006 Location: mt fuji Age: 46 Posts: 1,335	you must have saved a vga screenmode. delete prefs/env-archive/sys/screenmode.prefs

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