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Old 11-15-2004, 09:54 AM   #1
jacobop007
LQ Newbie
 
Registered: Aug 2004
Location: Spain
Distribution: Slackware 11
Posts: 11

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slow modem "at commands" response


Hi all,

I have a hardware modem (ISA internal) installed in a PII - Slack10 box. During boot process the new COM4 port is detected as /dev/ttyS3, as though everything was fine. Then I tried to check whether it was running using seyon/minicom terminal emulators before linking the /dev/modem to this serial ... I does work, or it seems so, but when an "at" command is typed it takes 45 seconds (more or less) to answer "OK" or whatever ...

I've configured a dial-up connection but it is not working ... since I cannot trust this modem I am not sure if it is due to a "pppd" issue or an odd modem behaviour ...

Any idea?.

Thanks in advance.

Jacobo Pérez.
 
Old 11-15-2004, 08:16 PM   #2
aus9
LQ 5k Club
 
Registered: Oct 2003
Location: Western Australia
Distribution: debian IceWM
Posts: 5,608

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assuming its a dial up modem, do you get any references to the output in a terminal to lsmod? = list modules
ie su and passwd
lsmod

2) I have three beginning with ppp_ for a start and these needed UNcommenting in my /etc/rc.d/rc.modules

3) I also use kppp to configure my modem (KDE running) or you can use other wm as long as you have installed KDE i think.
Because you need a link for your /dev/modem to ttyS3 but you can link manually something like
su and passwd
ln -s /dev/modem /dev/ttyS3
If I am wrong then its the other way around. heh heh
 
Old 11-16-2004, 03:29 AM   #3
jacobop007
LQ Newbie
 
Registered: Aug 2004
Location: Spain
Distribution: Slackware 11
Posts: 11

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problem solved

Hi again,

thanks for your idea, but last night I decided to open my PC again and change the jumper setting of the modem card so as to becom COM3/irq 4 instead of COM4/irq 3. And now it works. Do not ask me why I did this ... somehow (at least for my motherboard) there is some problem with the irq 3 (shared with COM2) ... but now with IRQ 4 (shared with COM1) it works. It was very late and I had only time to check whether the COM1 was also working ... today I will check COM2.

But the important question is that now usign any terminal emulator (seyon, xminicom ....) I can send commands to the modem and I can see (in the /var/log/messages) my "ppp-go" script run properly ... I still cannot connect, but I guess that this time is a question of PPPD configuration, so I am not worried about this issue, it is a question of "man".

Ciao.

Jacobo.
 
  


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