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Author Topic: Amiga 1200 disappearing/garbage mouse pointer A1200  (Read 2625 times)

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Offline mechy

Re: Amiga 1200 disappearing/garbage mouse pointer A1200
« on: February 08, 2018, 08:29:23 PM »
Quote from: tbtorro;835879
Has anyone seen an issue on A1200 when the mouse pointer goes AWOL? Both buttons work, pointer moves, but it's not there - or in other words invisible. Sometimes I see a pointer shadow as garbage artifact moving in a column on the left side - SOMETIMES - but mostly it's just missing..

So I assume it's something to do with drawing and updating the hw. sprite, as opposed to mouse control. Could swap out LISA thought first check in if someone has seen it and maybe some TTL component fault could cause this. The board is super clean (no corrosion).

This behavior is consistent, same in even early startup with nothing plugged in but video and mouse.

Driving me nuts..

bad solder on agnus(alice?) possibly?  ram ok?