No luck.  Comments provided below.
I must be missing something.

"Henry B. Hotz" wrote:
> 
> Been out sick.  Sorry about the slow reply.

No problem!

> 
> At 11:28 PM -0800 1/26/01, James Tuman Nelson wrote:
> >Chris Tribo wrote:
> > >
> > > on 1/26/01 4:07 AM, James Tuman Nelson at jimtnelson@earthlink.net wrote
> > > something like:
> > >
> > > > I connected the keyboard directly to the 7500, bypassing the monitor,
> > > > with no luck.
> > > > I tried this with and without the System Disk (modified) patches.
> > > > I am not using an extension cable, just the stock configuration.
> > > > I also set the monitor to 66Hz and 640x800 under MacOS.
> > >
> > >     Uh, 640x800 is not a valid resolution. The 1710 _should_ multisync to
> > >         60-85Hz Vertical, 30-110kHz Horizontal, and 640x480-1600x1200 IIRC.
> > >         If it's trying to do 800x600 instead of 832x624 it might not work.
> > >
> >
> >You are right, I made a typo.  I tried a lot of other resolutions, but
> >no good.
> >
> > > > I set the input/output to kbd and /chaos/control and auto-boot? off.
> > > > When rebooting, the system stops at OF, the monitor screen lights up,
> > > > but no output.
> > >
> > >     Could very well be an invalid sync rate, can you use the monitors menu
> > >         system and see what it's trying to drive the display at? I forget
> > >         if the 1710 could do that or not...
> >
> >I tried several sync rates, setting them under MacOS.
> 
> That's why I said to disconnect the ADB cable from the monitor.
> Without it the Mac can't tell it isn't just a dumb PC monitor and the
> monitor can't tell it isn't connected to a PC.  The monitor front
> panel controls should act normally and bring up some ugly, but
> functional menus for the usual configuration stuff (instead of
> bringing up the Monitors control panel inside MacOS).

I disconnected the ADB cable from the monitor to the 7500, and connected
the kbd directly to the ADB port on teh 7500.  The mouse is connected
into the kbd, daisy chained.  Under OF, manual display of the monitor
indicates horizontal scan rate fo 35000 and vertical of 67 Hz.  No
resolution indication.  No luck either.

> 
> Setting the resolution under MacOS should then be completely
> irrelevant.  When you reboot to OF you revert to 640 X 480 @ 66 Hz.
> (We're talking a 7500 with OF 1.0.5 here remember.)  The monitor
> should see the frequency of the sync pulses and adjust without any
> required intervention.  Looking through the menu's can hopefully
> confirm this though (as suggested above).

Confirmed at 67 Hz.

> 
> > >     Then try resetting your monitors controller with Command-Option-A-V
> >
> >That is a new one to me.  I will try it.  Someone suggested that the
> >output might be off screen, or outside the window, and resetting a few
> >things might bring it back in.
> 
> This is a new one for me too.  Did it do anything?

No, did nothing.  

> 
> >Does any one know if  a low nonvolatile ram battery voltage might be
> >a problem?
> 
> No, but I doubt that anyone could rule it out.  A low battery could
> do all sorts of strange things, at least in theory.  FWIW I have a
> 7500 and 8500 and they both have the original batteries still.
> They've both been kept powered on most of the time though.

I should think that nvram would be unstable with a low battery.  I did
notice a change in load-base or real-base between boots to netbsd, however.

Do you actually have NetBSD-1.5 boot up on the 7500 with a 1710 monitor?
 If so, what are your nvram settings?  Has anyone out their installed
1.5 on a 7500 with a 1710 display yet?

> 
> I think I said this already, but try to debug this problem in OF
> directly.  I think NetBSD has nothing to do with it, and just
> inherits a messed up configuration.

I agree, but no luck.  I have not yet tried to edit the nvram, though I
played with it a bit.  I have to do some reading.

I did inspect the boot log written to the zterm screen through ttya when
booting NetBSD.  See my other correspondence.  The boot log indicates a
problem of some type, I think, when detecting the monitor.  The monitor
does light up during booting.  Just no output.

By the way, I have been accessing NetBSD macppc on the 7500 through
telnet from an i386, using both NetBSD and Windows telnet.  Works
great!!! Compiled a large fortran code, ran overnight, no problems.  Can
switch su root, etc., and administer the system.  NFS works, as
advertised.  Have not tried everything, though.  It is a pleasure.

> 
> Signature held pending an ISO 9000 compliant
> signature design and approval process.
> h.b.hotz@jpl.nasa.gov, or hbhotz@oxy.edu