[Demo] Could this be a bug?

I believe I may have found a bug by running a demo by I really can't be sure.

My configuration is an Intel Core2Duo E4600, graphic card ATI HD2600XT, 2GB RAM, Onboard Realtek Audion, motherboard Asus Asus P5LD2-X, Windows Home XP SP3.

Anyway, on Chrome's pack disk Stigmata #36, which can be found here, in the intro Skunkro you will notice on the left side of the screen in the copper part some little squares running up the screen. I had that pack when I had my Amiga 500 and I am not really sure but I think those squares didn't show up when I ran the demo in the Amiga. However I really can't be sure so if anyone could please try this and confirm if it's a bug or not...

The CRC of the dms is 8A0C8860. I used the following quickstart configurations:

A500 1.3 ROM, OCS, 512k + 512k slow
A600 4MB Fast Ram
A1200 Basic non-expanded

The intro doesn't appear to run with 512k only.

In all these configurations the squares persist. I add the winuae logs on this message as well, as well as a screenshot here. Notice the little squares on the left side of the screen, in the copper routine area.

I'm wondering if I'm the only one that has this and if not if it's indeed a bug or not.

Anyway, excellent work on WinUAE, Toni!

[s2325]

Maybe that part of screen on Amiga wasn't visible.

[TCD]

s2325 is right. If you use the 720x576 windowed resolution you can see things that are outside the border of the normal Amiga display. Does the 'bug' disappear if you run it in a 640x512 window?

Originally Posted by TheCyberDruid

s2325 is right. If you use the 720x576 windowed resolution you can see things that are outside the border of the normal Amiga display. Does the 'bug' disappear if you run it in a 640x512 window?

Yeap, it does. Seems you were correct then.

[Toni Wilen]

Random graphics errors in borders with max overscan display size is usually normal because they are invisible without using TV monitors with adjustable size settings.