How to adjust monitor in iMac G3?

[naujoks]

Since exchanging the dead flyback in my iMac G3 with a working one, the screen dimensions are almost good, but not quite.
Is there a way I can adjust the dimensions? The vertical size needs to be decreased and the vertical position too. There are no adjustment pots on the board, of course.

 

[bibilit]

Only adjustments available on the board are Focus and brightnes (flyback transformer), all other ones are done via MacOs software only.

 

[mac27]

Most of the adjustments are found under the "Monitors" control panel in OS 9.

 

[naujoks]

But in OS X there is no such panel?

 

[mac27]

I don't have OS X on my iMac G3 so I can't personally say for sure, but there should be some kind of "displays" section in System Preferences depending on what version of X you are using.

 

[croissantking]

But in OS X there is no such panel?

You would boot into 9 to set up your geometry, then boot back into X

 

[finkmac]

But in OS X there is no such panel?

???

 

[croissantking]

They are referring to the geometry panel, which is found in Mac OS 9’s Monitors control panel, and adjusts compatible monitors like the trayloader iMac CRT and the old AppleVision displays. I think OS X dropped support for this - I believe there is no such feature within the Displays panel.

View attachment 90199
???

 

[finkmac]

I think OS X dropped support for this - I believe there is no such feature within the Displays panel.

Spoiler: are you sure about that? 😉

the silly imac image is the only one i could find. also holy balls pogue has a REALLY STUPID suggestion wtf. "eliminate the black borders"?? there's a REASON they exist!!!!!

 

[croissantking]

Spoiler: are you sure about that? 😉

View attachment 90201

Ahh, nice. My bad. Your photo shows it working with the slot load iMac, can we assume it also works with the trayloader? What kind of iMac does OP have anyway?

 

[finkmac]

it should appear on any internal CRT Macs that can officially run OS X