I tried the new vfo file you attached and the display to me looks almost exactly the same as the previously compiled vfo file. I'm still getting missing pixel information on the left and right sides of the screen as though it's only showing 1280x1024. The MLA is still showing the display as being 1280x1024 and not 1600x1024.
With the newly compiled vfo running, what resolution does the Multi-Link Adapter's On-Screeen Display indicate, and (not to belabor the obvious) have you had the opportunity to try adjusting the display with the adjustments in the MLA's Advanced Display Menu (or the "Force Detect" option in the MLA's general menu)?
I have already tried that on each iteration of the vfo files. I've tried the force detect, wide/zoom, overlapping modes, reseting the monitor, adjusting phase, clock etc...
What I'm seeing with the last two files appear to have a much darker, distorted horizontal band of graphics at the top portion of the screen. Maybe 50 pixels tall or so.
On your previous post, you linked to the vfs page that was written. I took another look at the readme at the beginning and the poster says "Anyway, enough of my troubles. The 1600x1024_60p.vfo only
works if you have the flat panel adapter AFAIK, and the timings are
set appropriately for digital out (no front porch!). This 1600x1024
works with the analog output and sets the timings appropriate for
analog out." What is this Front Porch? I can see some entries on both of those files for horizontal and vertical front porch, maybe that's what they are referring to? Maybe that's something that needs to be changed?
Another interesting thing I noticed when fiddling with the MLA adjustments is the overlapping mode. In the default mode, I get a "normal" looking picture, but the sides of the screen are black. In the Alternate mode I can actually see most of the image, but the colors are all messed up and the display is showing the left halve of the screen on the right and vice versa. You posted much earlier a link that stated " These lines are required for use with the SGI Multilink Adapter and the SiliconGraphics Flat Panel display.
Modeline "1600x1024g" 108.0 1600 1616 1656 1704 1024 1027 1030 1056 -Hsync -Vsync
Option "OverridePolarity" "1""
I wonder if the syncs need to be reversed and this OverridePolarity needs to be flagged.
I think we are getting close to solving this mystery. I'm sure I'm not the only one out there that has this sort of a setup. Once we get this sorted, we should definitely include the vfo file into the Wiki about the MLA and the 1600sw.
One last thing, the 13w3 adapter I'm using was purchased from a site that specifically makes these for different models of SGI's and SUN computers. They have a computer selector/configuration for the different types of 13w3 adapters and mine was specifically for SGI's and Octanes. I don't think it's a bad adapter because I've used a few other monitors with the computer (analogue and digital) and never had any problem before. If it turns out that the adapter is to blame, then do you know where to get a proper one?
Thanks again for all your help with my crazy setup!