are you sure the modem is awake (as in, no software magic or no bios needs to wake it up)?
that modem has firmware that can be updated; do you have the latest? what happens if you send a regular hayes command to the modem, for example: escape, speaker always on, volume up and a pause (to hear a line)? $ echo '+++'>/dev/ttyS4 $ echo ATM2L3>/dev/ttyS4 $ echo ATD>/dev/ttyS4 do you now hear a dialtone (i am assuming it has a speaker)? it's a usrobotics; i remember these had a slightly different command stack in the eighties and the nineties. but it should take standard hayes command nevertheless. the usr.com page doens't list a datasheet... from your dmesg: > [ 1.365228] 0000:04:01.0: ttyS4 at I/O 0xd000 (irq = 17) is a 16550A this looks like a serial port, not like a fax/modem. do you have anything else in your dmesg that points to a modem? what does lspci tells you? try "sudo lspci -vvvk" and see if the modem is listed to post the traces: they should be written to files automatically, just post these as attachments? make sure you do a trace of your problem (sending a fax): -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087519 Title: Serial port ttyS4 doesn't work in 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1087519/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
