Re: Dial-up modem 'No CARRIER'
Koen Vermeer said...
> On Sun, 2005-10-16 at 19:06 +0100, marc wrote:
> > The laptop modem is dialing and exchanging with the ISP. Then, 24 times
> > out of 25, all I get is 'NO CARRIER'. Very occasionally, I connect
> >
> > I've tried both wvdial and KPPP in KDE. When I boot into XP, the modem
> > connects successfully 100% of the time - so the wiring, hardware and ISP
> > are fine.
> >
> > I read somewhere that nic interrupts might clash, so I've ifdown'd that,
> > and I've also tried lowering the line speed don to 9600.
> >
> > Any suggestions on how to improve things?
> >
> > I'm on 2.3.13 etch.
> Maybe you could tell us what kind of modem you've got...
Sorry, I posted before disappearing for the night, and realised I should
have provided more info.
The modem is:
0000:00:1e.3 Modem: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) AC'97Modem Controller (rev 04) (prog-if 00 [Generic])
Subsystem: Acer Incorporated [ALI]: Unknown device 007a
Flags: bus master, medium devsel, latency 0, IRQ 10
I/O ports at e200 [size=256]
I/O ports at e300 [size=128]
Capabilities: [50] Power Management version 2
PCI id:
0000:00:1e.3 0703: 8086:266d (rev 04)
(which is supported here, as an alternative,
http://www.linuxant.com/drivers/hsf/index.php
I haven't tried the free version yet, though, because although the docs
mention Debian, there isn't a package, only the sources.)
I'm using sl-modem-daemon. My location is the UK, which is what I have
selected in the sl-modem-daemon configuration.
> The last time I used my modem is almost a year ago. I got it to work by
> using its ALSA driver, but I think I remember that I experienced
> problems with wvdial. Some carrier detect problem, badly documented
> somewhere on the insane wvdial homepage. I think I got around it by just
> using 'ppp on' or something like that. But all of this may not apply to
> your modem, of course.
Yeah, it's a shame. It's just a lot easier to go into XP! wvdial is
okay, but ppp looks horribly complicated - with no guarantee that things
will work. (I'm going to try using pppconfig that someone suggested on
the .user list.) But this is just a carrier detect problem - hardly
modem rocket science. Everything else works, and we know that all the
hardware works.
Is there a "carrier sniffer" out there? Since modems have been around
since the beginning of time, it would seem an obvious diagnostic tool to
have been developed. After all, there is a carrier there. Heck, the
software has even found it a few times.
--
Best,
Marc
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