Red Hat Bugzilla – Bug 64899
Config doesn't find modem with port higher than ttyS3
Last modified: 2014-03-16 22:27:24 EDT
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Description of problem:
In RH 7.1 using the config programs my modem is found on /dev/ttyS2. In 7.3
it's not found at all by config-network. It's an internal, hardware modem.
After reinstalling 7.1 (to get a working reference point) and then reinstalling
7.3 and doing a bit of research with setserial I found the modem at /dev/ttyS4,
much to my surprise (didn't think that port existed). Interestingly, the
hardware summary program doesn't show my modem either.
Using /dev/ttyS4 in redhat-network-config worked like a charm. Perhaps a few
higher ttyS* numbers should be added to the scripts that find the modem and then
show the possible ports? Or is this a problem elsewhere? I had trouble
deciding if this was a kernel problem or not, but after all, the kernel knows
the modem is there, it's the config and other programs that don't.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Fresh install of RH 7.3 on reformatted drives
2. Try to configure network/dialup
3. Dialup won't find modem higher than ttyS3
4. use setserial -bg ttyS* to find actual modem port
5. Enter port in config-network
Actual Results: After I used setserial to find the port, it works fine.
However, I don't think a newbie should be expected to know that. It took me
reading up in an old networking manual to find the command I wanted, and I was
very determined (love 7.3, but really need my internet connection!).
This is a PenguinComputing Tempest computer:
AMD Athlon 1.3G
10/100 Ethernet Card
Internal Hardware Modem (sorry don't know the flavor)
Created attachment 57326 [details]
Modem probing script
Created attachment 57327 [details]
modem test script
Can you test the attached script (duped, didn't show up the first time) on your
system (as root) and return the result?
The result is:
[root@lavender root]# ./modemtest
I haven't a clue what that means, I think I need to continue reading my python
It means that the probe code didn't find a modem. The probe code is part of
Fixed in 1.2.47-1.