Steve Fosdick fozzy@pelvoux.demon.co.uk wrote:
On Sat, 26 Jan 2002 12:13:52 bsamuels@beenthere-donethat.org.uk wrote:
I posted in the middle part of January about my neighbour's
external
modem that wouldn't dial out and failed with "NO CARRIER". This
was
running under Progeny Debian.
The latest development is that we have discovered that it will
dial
when running in Single User mode on his machine but not otherwise.
One possibility is that in multi-user mode more than one program is trying to talk to the modem at the same time. If you have lsof installed you could use that to stop things that have the /dev/ttyS0 device (or whatever device your modem is on) open. Alternatively maybe post the list of processes running in multi-user (with ps -ef) mode and see if we can spot things that look modem related.
Steve.
Bear in mind that an initialisation string sent to the modem first returns 'OK'. Surely that wouldn't happen if another application was accessing the modem.
I'll try the ps -ef as you suggest.
Barry Samuels