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Offline Ami_GFX

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Re: Help - Amiga video Gurus
« on: June 06, 2008, 05:13:55 PM »
I've got the EGS 24/28 in my Amiga 2500 triple booting EGS, Cybergrafix and Picasso 96 drivers. The Picasso 96 utility in the Prefs drawer should list your card and have a selection of video modes for it. There is an option to test these modes and I would start by testing them all. In the test mode, if it works, you will get a test pattern on your screen and if it doesn't, you just have to click the mouse button to return to a native amiga mode--or a Picasso 96 mode that works. I am using a 15" Phillips LCD monitor with it. When I installed the Picasso drivers, I got 640x480 and 800x600 modes that work but I still haven't been able to tweak the 1024x768 mode to work. Usually you just have to adjust the clock rate but sometimes you really have to get into adjusting vertical and horizontal blanking intervals to get things to work. I had to do this with my Merlin card on my A4000. Also, which version of Picasso 96 are you using. There are several versions floating around the net. The latest one--I think--is 2.0. The good thing about the EGS spectrum card is that you can use Cybergrafix as well. Cybergrafix works better for some things--like Deluxe Paint works in RTG modes with Cybergrafix. And last but not least are the underrated EGS drivers which can only do a 256 color workbench but the EGS workbench is fast and stable and feels much more like a native Amiga workbench and Ad Pro can render a 24 bit full screen image in a matter of seconds in EGS--I used to pass 24 bit images from my A2500 to my roommates 486 PC and the PC which was in theory faster than a 68030 Amiga, took about a minute to render and display a 24 bit image.

The cable you need to pass Amiga Video to the EGS card is a 23 pin to 9 pin female cable. I think there are some Amiga monitor cables in this configuration. I have a 2320 flicker fixer and had to make a 15 pin vga to 9 pin female cable. 15 pin male to 9 pin male cables are common but 15 to 9 pin female ones just weren't used that much
A2500 owned since 1993 with A2630/DKB 2632, DKB Megachip, GVP EGS Spectrum, A2320 and GVP HC+8 on the inside and a DCTV on the outside. A4000D with CSPPC, Cybervision 64 and a Flicker Magic flicker fixer. A4000T Toaster Flyer & CSMKII. All systems completly retro and classic and mostly used to do geometic art as in my avatar.
 

Offline Ami_GFX

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Re: Help - Amiga video Gurus
« Reply #1 on: June 06, 2008, 08:45:15 PM »
Amigas can generate separete horizontal and vertical sync or composite sync. I think most RTG cards and most monitors use separete horizontal and vertical sync which is the most common form. I would check for interlaced modes. I just fired up my A2500 and everything 1024x768 and bigger is interlaced in Picasso 96. If your monitor doesn't accept interlaced signals, that just might be the problem. Try a 640x 480 or 800x 600 mode.

I didn't know about the sync capabilities of the Spectrum card. Mine came without a manual. If you try the EGS system, you should first install the 6.2 version that came with the Spectrum card(available from http://amiga.resource.cx/ if you don't have it), and then upgrade to version 7. You will get an alternate 24 bit Gui that looks Unix X windowish but beheaves like the Amiga Workbench and comes with a suite of EGS applications and utilities. You can switch between the EGS display and the EGS emulated Amiga workbench with a mouse click. I found this ftp server that still had the EGS 7 upgrade and a lot of other goodies. In fact, the only EGS application I haven't found is the EGS version of ImageFX(1.62). If anyone out there has a copy, I would be interested.

A2500 owned since 1993 with A2630/DKB 2632, DKB Megachip, GVP EGS Spectrum, A2320 and GVP HC+8 on the inside and a DCTV on the outside. A4000D with CSPPC, Cybervision 64 and a Flicker Magic flicker fixer. A4000T Toaster Flyer & CSMKII. All systems completly retro and classic and mostly used to do geometic art as in my avatar.
 

Offline Ami_GFX

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Re: Help - Amiga video Gurus
« Reply #2 on: June 07, 2008, 04:37:58 AM »
Quote


I looked thru my ImageFX installations, I have 1.51 and 2.6 (I think both are cover disk versions).  Was 1.62 ever on a Cover disk?


No, it was a special version for EGS that uses the EGS true color display. I've found an update patch for it and I found one copy for sale in the Netherlands but it was from someone who didn't take Paypal and wanted a 100 euro minimum order for sales of his Amiga gear outside the Netherlands. I use 2.6 on my A2500 and 4.5 on my A4000.

I really like EGS. It is quirky and eccentric but it is well coded, stable and fast. It's very good at displaying images. I like Cybergrafix and Picasso 96 equally well and each has it's advantages. Picasso 96 is extremely stable and fast but Cybergrafix has greater software compatibility--you can get Deluxe Paint to work in RTG VGA modes in Cybergrafix.
A2500 owned since 1993 with A2630/DKB 2632, DKB Megachip, GVP EGS Spectrum, A2320 and GVP HC+8 on the inside and a DCTV on the outside. A4000D with CSPPC, Cybervision 64 and a Flicker Magic flicker fixer. A4000T Toaster Flyer & CSMKII. All systems completly retro and classic and mostly used to do geometic art as in my avatar.