I wrote a wrapper script around nm-modem-probe. It turns out it works only if you probe the modem twice!
I tried sleeping for 3, 5, 8, 10 seconds and then probing once, but that didn't work. I could probe using /dev/.tmp-char-188:0 the first time and /dev/ttyUSB0 the second time, the other way around, or the same device twice. The only thing that mattered was that I probed the device twice. 3975 13:30:47 nm-modem-probe /dev/.tmp-char-188:0: E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 E: error writing command: 5 ID_NM_MODEM_PROBED=1 3975 13:30:53 nm-modem-probe /dev/ttyUSB0: ID_NM_MODEM_GSM=1 ID_NM_MODEM_PROBED=1 -- Network-Manager not seeing broadband card https://bugs.launchpad.net/bugs/360905 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
