[marbosa]

Not so very long story short: Bought an O2 off ebay which arrived battered and bruised. Got it working after a while, its currently sitting on the floor under my desk in it's dusty not-so shiny steel casing. Tturns out two ram sticks had to be removed -Either damaged or not identical. They looks different from one another to me.

Anyhow, picture quality is, well... not great.
The picture on the monitor has a greenish tint, and everything black shows as dark green.
When the computer boots, the screen is army-green before the graphics shows up, also when running the monitor-test in confidence test and outputing a black image.
I have tried to adjust the gamma-curves in display settings but it does not help much.
Neither does changing the settings on the monitor itself.

The monitor is a 2001-ish Fujitsu CRT monitor, and it works perfectly well on my other computers. Are there any known incompatibilities among various crt monitors and the O2?
Or is it possible that the video hardware in the computer is toast?

[commodorejohn]

The issue with the O2 is that, despite using a VGA output, it still includes the sync signal in with the green signal like on older *nix workstations. It's more compatible with modern monitors than those because it does provide the separate sync information on the dedicated VGA sync lines, but for monitors that aren't designed to cope with this, it will still count as an overall boost to the green signal and you'll get this. You'll want to find a monitor that can handle this; I use a Samsung Syncmaster 173p and that handles it just fine.

[marbosa]

So if I understand you correctly, it does output h-sync and v-sync, but it also outputs sync-on-green?

The sog-signal is negative phase right? Eg -1V or so. Is it possible to surpress it by using a diode on the green signal wire?
Or any other means of supressing it as my monitor clearly gets confused by it

[commodorejohn]

So if I understand you correctly, it does output h-sync and v-sync, but it also outputs sync-on-green?

Correct. It's a very odd choice, but there you have it.

The sog-signal is negative phase right? Eg -1V or so. Is it possible to surpress it by using a diode on the green signal wire?
Or any other means of supressing it as my monitor clearly gets confused by it

That I couldn't tell you; I ended up buying a couple monitors in my search for a full SOG-capable one for my VAXStation, so I just had the one I currently use with my O2 handy.

[CiaoTime]

Can confirm: I've got one monitor (ASUS, TN panel, can't recall the name but it was probably from '12 or so) that displays a severely over-green signal when connected up to an O2. It's the monitor itself not entirely understanding what the O2's video output is trying to do; luckily, LCD monitors that do work with the setup aren't particularly rare or valuable.

I keep forgetting to jot down the part numbers of the ones I have that do work. Hmm.

[marbosa]

Thanks for the input guys. I just ordered a sync-stripper/separator from ebay, gonna try this first as I'm reluctant to get yet another monitor, my desk is crowded enough as it is hehe.

OT; when i try to install programs from .tardist files the software manager just throws an error that says "block size error". Not a single tardist will open, although they open fine in Winrar.
Running vanilla 6.5 without any updates afak.
Also any way to install a decent compiler like gcc and fpc/gpc? I have already downloaded the mipspro compiler but not installed it yet, need to free up som hard drive space first.

Is mipspro capable of compiling anything written after... 1965? /Sarcasm