Graphics corruption

[danbeaver]

From what you describe, It is not a hardware issue but a "patched" or mixed software problem. Try AGA mode, that will rule out the basics, then another graphic driver, like P96 (v2.1c), or go back to the original install version that was packaged with the card. if you meet criteria, try OS 4.1; the software Is a complete new take on the hardware

Yes many of us love our Classic Amiga's and some folks comments are inflammatory for that reason only

[danbeaver]

I would not let Mr Tiny Trains (or is he Mr Tiny Brains) get you off topic

[danbeaver]

Fixed artifacts in certain modes = graphics board problems, an electrical problem if you will. Then of course one has to rule out confounding hardware issues such as a monitor "near out of sync" or similar. Think, "it doesn't move," so not software.

[danbeaver]

Well, if it is him, I would like to say that I am an Electrical Engineer that works with real trains, not childrens 'n' model ones. Am I now guilty of trolling Doomy ? :roflmao:

Clarity: n scale = tiny trains = tiny brains

[danbeaver]

Uh, the fact the the hardware is programmable does not make it a software problem any more so than a resistor can be "programmed" by varying the voltage applied. "Firmware" is software imbedded in hardware but it, like "software" runs on hardware. The software/firmware will not alter the properties of the transistors themselves.

Ya can't fix a bad resistor by changing the software.

[danbeaver]

One person's glitch is another man's feature.

(Ask any IBM salesman)

[danbeaver]

"Umkay, this helps the OP solve his display problem how, exactly?"

Only use those modes that work without issues?

[danbeaver]

A Moire' effect is neither a programming failure nor the sign of the ill informed. DAC issues and clock rates can make a difference. Three boards with the same "issue" in only certain modes COULD be either a hardware (my vote) or software issue. If it is necessary to find out which, use P96 or pop it into an OS 4.1 system. Ergo different software. If the "issue" persists, it is hardware. Don't shoot the messenger; this is a forum -- you know where Caesar got stabbed to death? Be open to other ideas.

[danbeaver]

Thank you for the input, it can now be established that you did not cause the problem and with your technical background don't care to help

[danbeaver]

Still sounds like a hardware problem