Gunnar Helliesen <gunnar@bitcon.no> writes:
> When the system boots into multiuser the screen turns blank (black) and
> the monitor powers down (suspend) after this line is printed on the
> console:
> 
> setting tty flags
> 
> What could be causing this? I thought graphics adapthers didn't use
> IRQs, but is that what's happening here? I.e. something (the NE2000?)
> grabbing the Mach64's IRQ?

Dredging this out of the depths of my memory:

> com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
> com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
> com2 at isa0 port 0x3e8-0x3ef irq 5: ns16550a, working fifo
> com3 at isa0 port 0x2e8-0x2ef irq 9: ns16550a, working fifo

I seem to recall that some VGA-ish boards use some of the same I/O
addresses as what dos calls COM4.  because of this, com3 isn't enabled
by default in the i386 GENERIC kernels.

You might try disabling it and seeing if the same problem results.




cgd
-- 
Chris Demetriou - cgd@netbsd.org - http://www.netbsd.org/People/Pages/cgd.html
Disclaimer: Not speaking for NetBSD, just expressing my own opinion.