I have a TGX+ card installed. It also has 512MB of RAM so I took the VSIMM out.
I hooked up a NULL modem cable to my PC and have been interacting with the SS20 using the serial console.
I went into OpenBoot PROM and did a printenv and verified that output was SCREEN. I even tried to change to : screen:r1024x768x60
It will not activate the LCD at all using the internal or external Frame buffer.
I've tried 24" dell LCD, Viewsonic VP2130b and NEC LCD1700M.
Maybe the XServer config is pointing to the internal FB instead of Aux one? Any thoughts on how to change the XConfig to make it use the external FB?
I am using the same type of adapter in your picture. I have it on my SGI machine and it works fine.
I was even trying to get the console output to go to the LCD but it wont. I was hoping to see even the boot process on the LCD screen but it will not print there.
In order for the serial console to work, I have to remove the keyboard plug otherwise I see no serial activity.
Your input would be greatly appreciated.
We need more info to help diagnose the problem with your setup:
Which graphics option is your SS20 using? Built-in SX? Turbo-GX SBus card? Something else?
What 13W3 to HD15 adapter are you using?
What brand/model of LCD are you trying?
Is your SS20 configured to output
to the serial console?
With no display, can you tell if the SS20 is doing anything at all? Maybe it's a more serious problem than just the display.
FWIW, my SS20 (with Turbo-GX graphics) has no problem displaying on my trusty old Samsung SyncMaster 760V LCD with
one of these adapters