From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 14 Apr 1997 15:20:54 +0100
From: Andrew Lynch lynch@ccigate.cci.de
Subject: Plan 9 on Sun IPC + cgthree?
Topicbox-Message-UUID: 56391b70-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19970414142054.mQC8_xYgD7Sm9eBogAA-MyJsaAru-QowDJwwoG0Bpzo@z>

dhog wrote:
> Speaking of hacks to the ss confinit(), here is a patch to enable
> the use of a serial console on a sparcstation which has a monitor.

Thanks for the suggestions so far. Unfortunately none of them seem to 
have impressed my IPC very much...
Various combinations of hardcoded cgthree and/or selection according 
to slot number always resulted in the same "nothing". Using the 
serial console patch does the same, only on the terminal, not the 
screen.

I guess there must be more to it than just the screen problem. Any 
hints as to where to look? (only main.c or also mmu.c/trap.c etc.?)
Which main stages are there before the first output on the screen?

Andrew.

P.S. Brian L. Stuart apparently got Plan 9 to run on a bwtwo-only 
IPC. I've got no problems with removing the cgthree for the time 
being, however just yanking it out and plugging the monitor (Sony 
GDM-1962B) into the bwtwo results in no picture. Are there any nvram 
incantations I should be aware of? Would it help to wait for a full 
moon?

P.P.S.
Type  help  for more information
ok help
There's no help for the weary.

I might expect this kind of sarcastic wit from Plan 9, but that's my 
IPC's Boot-ROM...