Display Resolution with Beige G3

Question

Hello,
I am running a G3 Beige with an OWC G4 500 MHz OWC upgrade processor. The machine is running Mac OS 10.4.8 well.
I love to have more choice in the display resolution. A few days ago, I accidentally touched a couple of things, and was able to change the resolution to a higher one. However, when i reboot the machine later, the magic disappeared. I cannot recall what I did to increae the choice of display resolution.
Can you tell me what I can do to change the resolution from 832X624?

Answer 1

You want separate Syncs.
The CRT is supplied with data for its Red, Green, and Blue Electron guns on pairs of wires (or coaxial wires) reserved for them. The CRT sweeps the electron beams across the face of the display and "lights up" one row of dots, then steps down one row, returns to the left side, and gets ready for the next row.
There is no row buffer in the CRT, it displays the Red Green and Blue data "live", 60 or more times a second. The data for each row is supplied at the right instant to display it properly across the row. In order to position the beam properly to display the correct row data, the CRT must know when rows and screens start and end.
Horizontal Sync - tells when a row should start and end. The beams are "blanked" during Horizontal Retrace time.
Vertical Sync - tells when the entire screen should start and end, and the beam should be brought back up to the top. The beams are blanked during the manyrow_timeslong Vertical Retrace time.
Some cheaper monitors combined the Horizontal and Vertical Sync together electrically and provided the combined signal as "Composite Sync". The CRT was responsible for pulling the separate signals out of the composite.
The other trick that saved one more pin in the cable was to combine the Composite Sync information onto the Green data signal. The CRT had to dig out both Horizontal and Vertical Sync from the Green data line. This had a tendency to make the Green data less crisp.
Macs have always provided separate Syncs. Except, perhaps, for the very first Mac-II displays, genuine Apple Mac displays have accepted only Separate Syncs.