[parisc-linux] Serial console settings?

[parisc-linux] Serial console settings?

[Tom]

Maybe I'm missing somethign here... I set up a serial console on the C180,
which works great at 9600. Want to speed it up, so I changed the settings
to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
to 9600 and there's the screen... Doesn't seem to matter what I set the
console speed to in the PDC - it always runs at 9600. Is there some way I
have to "push" this, or otherwise save it?

Re: [parisc-linux] Serial console settings?

[Matt Taggart]

Tom writes...

> Maybe I'm missing somethign here... I set up a serial console on the C180,
> which works great at 9600. Want to speed it up, so I changed the settings
> to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> to 9600 and there's the screen... Doesn't seem to matter what I set the
> console speed to in the PDC - it always runs at 9600. Is there some way I
> have to "push" this, or otherwise save it?

Are you saying that the firmware doesn't display properly or the Linux
console?

If its the firmware my only advice is to try several different settings and
see if you can get anything other than 9600 to work. If you can then you
can try turning it up.

If you're referring to the Linux console, you'll need to edit the serial
terminal lines(they start with "T") in /etc/inittab and change the speed
there to match firmware.

HTH,

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation

Re: [parisc-linux] Serial console settings?

[Tom]

> > Tom writes...
> > Maybe I'm missing somethign here... I set up a serial console on the C180,
> > which works great at 9600. Want to speed it up, so I changed the settings
> > to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> > with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> > to 9600 and there's the screen... Doesn't seem to matter what I set the
> > console speed to in the PDC - it always runs at 9600. Is there some way I
> > have to "push" this, or otherwise save it?
>
> Matt:
> Are you saying that the firmware doesn't display properly or the Linux
> console?
>
> If its the firmware my only advice is to try several different settings and
> see if you can get anything other than 9600 to work. If you can then you
> can try turning it up.
>
> If you're referring to the Linux console, you'll need to edit the serial
> terminal lines(they start with "T") in /etc/inittab and change the speed
> there to match firmware.

Whoops - me bad. Should have been a bit more specific... This is the HP
PDC console settings I'm talking about, not the Linux console. I set it to
serial_1.19200.8.none and it happily stays at 9600. I thought that perhaps
it was auto-detecting the terminal speed and resetting itself, but if I
set it that way, then reset the terminal to 19.2 it won't see any display
until I reset it to 9600...

It's not critical to increase it, but when it's needed 9600 sure is slow
:-)

Re: [parisc-linux] Serial console settings?

[Christoph Plattner]

.. Further the serial console speed has to be set, if Linux does
not use the PDC console (new feature for E55 and other machines with
proprietary hardware). The speed setting is done via kernel command
line parameter like

	console=ttyS0,38400

For more details at this point see under
linux/Documentation/serial-console.txt

Bye
Christoph P.


Matt Taggart wrote:
> 
> Tom writes...
> 
> > Maybe I'm missing somethign here... I set up a serial console on the C180,
> > which works great at 9600. Want to speed it up, so I changed the settings
> > to rs232_1.38400.n.8 (or whatever the exact syntax is - the PDC is happy
> > with it). Power-cycle, reset terminal to 38400 and nothing. Reset terminal
> > to 9600 and there's the screen... Doesn't seem to matter what I set the
> > console speed to in the PDC - it always runs at 9600. Is there some way I
> > have to "push" this, or otherwise save it?
> 
> Are you saying that the firmware doesn't display properly or the Linux
> console?
> 
> If its the firmware my only advice is to try several different settings and
> see if you can get anything other than 9600 to work. If you can then you
> can try turning it up.
> 
> If you're referring to the Linux console, you'll need to edit the serial
> terminal lines(they start with "T") in /etc/inittab and change the speed
> there to match firmware.
> 
> HTH,
> 
> --
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at