Sort of fixed (Re: Serial port problem)
Alan Garrison
agarris@voyager.net
Fri, 09 Jun 2000 16:47:43 -0400
Alan Garrison wrote:
>
> In my server (Debian slink) which runs my dialup, I switched
> out the old motherboard and up in a new one (new Super7 board).
> Just the motherboard, and cpu were changed, all the other
> hardware is the same. Everything works except I can't do
> anything with my modem. My PPP script just dies, and minicom
> loads but it doesn't get any signals back from the modem.
> I tried using both /dev/ttyS0 (com1) and /dev/ttyS1 (com2).
> The boot message says something like:
>
> /dev/ttyS0 (IRQ4: 3f8) 16550A
> /dev/ttyS1 (IRQ3: 2f8) 16550A
>
> (note: I'm typing this from memory, what it actually says is
> probably a little different). It seems that the kernel
> sees the ports as 16550A UARTs. I am running kernel 2.0.36.
> Any ideas? (If it's not already obvious, the modem is
> external and worked perfectly fine on the older board).
For some reason, if I drop the PPP speed from 115200 to 57600,
it works. I just kept it at 115200 and on the old motherboard,
it worked fine. Perhaps there is something funky about the
UART interface on this new board.
Andrew Keen: It's a Gigabyte GA-5AX (rev 5.x), and I am
plugging the modem cable right into the ATX serial slot in
the back (no header cables or anything).