Re: Console on 9000/425t with A1659A graphics

[Chris Hanson <cmhanson%eschatologist.net@localhost>]

On Dec 7, 2018, at 2:00 PM, Chris Hanson <cmhanson%eschatologist.net@localhost> wrote:
> 
> On Dec 4, 2018, at 11:07 PM, Miod Vallat <miod%online.fr@localhost> wrote:
>> 
>> 
>>>> Your code is assuming the SGC frame buffer, if any, is always in slot
>>>> #0. This is correct on 425e, but not on 425t where it will be in slot
>>>> #3.
>>> 
>>> Once I’m in a position to rebuild the hp300 kernel, it should just be a matter of swapping a 0 for a 3 to give this a try, right?
>> 
>> Yes, changing all three occurences of sgc_slottopa(0) to sgc_slottopa(3)
>> in sys/arch/hp300/hp300/autoconf.c ought to work for your machine.
> 
> I built a kernel with these changes, copied it to my 425t, and did the following:
> 
> - Added wscons=YES to /etc/rc.conf
> - Uncommented screen 0 line in /etc/wscons.conf
> - Set console to Local instead of Remote in Configuration, RS-232
> - Shut down machine
> - Booted my new kernel
> 
> It showed the kernel startup messages on my HPA1659A!
> 
> Unfortunately, it then panicked:
> 
>    panic: cnopen: no console device
>    Stopped in pid 2.1 (init) at netbsd:cpu_Debugger+0x6: unlk a6
> 
> I’m going to re-comment the “screen 0” line in wscons.conf; I didn’t need it on the 433s.

I commented out the “screen  0” line in wscons.conf and still get the same panic at start.

Where’s the code that says some systems should default to serial console while other code should use wscons, is that what’s calling cnopen?

  -- Chris