terminal speed (console)

[IWANIEC, EDOUARD]

I changed the speed on the terminal from 9600 to 38400, and the speed definition of the console in /etc/gettydefs from B9600 to B38400. I got only mess on the console.What else is necessary for using 38400??

Thanx in advance
Laszlo

[Andreas Voss]

Hi,

have you killed the old getty process to take changes in affect ?

Regards

[John Palmer]

Hi,

Extract from document A4390913:-

Problem Description

Can I change the console baud rate to faster than 9600?

Configuration Info

Operating System - HP-UX
Version -10.01
Hardware System -K420

Solution

You can do it, but it is an unsupported configuration.

dev/sysinit, /dev/console, and /dev/syscon are all linked.

The console is setup from the console gettydefs entry as well as the
stty::sysinit:

In inittab, it is also set in other places during bootup.

It's easy to set the 700/96 terminal to 19200 but, since the console
is setup in various places during bootup, changing these files in
the OS is ineffective and unsupported

So it's probably best left at 9600.

Regards,
John

[Rick Garland]

Character based consoles see no real speed up effects when going past the 9600. Assuming the right serial port, can increase the speed. But the operator usually does not notice.

[IWANIEC, EDOUARD]

Andreas: yes, I killed getty (by signal 15)
John: is this valid for 11.00? Adn when I perform "stty 38400 Rick: if I increase the transfer speed, the terminal reacts faster, doesn't it?? I mean, I don't have to wait 3-4 seconds of the next SAM screen, only 1 second. Or not??

[Rick Garland]

The terminal will react faster, Yes.

Most character based applications are drawn with the user not knowing what the speed is. You can set for 9600 or for 38400, the typical user will not know the difference.

SAM may still take 3-4 seconds to draw the screen. It isn't a function of the screen draw but of SAM starting up. On a graphics term, SAM still takes 3-4 seconds to come up

[IWANIEC, EDOUARD]

Thanx for the answers.

Laszlo

[Wodisch]

hello,
first, only the first two ports of a MUX are usually able to use speed over 9600 baud,
second, the handshake setup is plain wrong,
third, for the speeds 19200 and 38400 you have to use the words "EXTA" and "EXTB"

HTH,
Wodisch