I have a Huawei E398 GSM Modem running on the latest Arch linux.
Kernel 3.8.10, modemmanager 0.7.990-4, usb_modeswitch 1.2.5-1, usbutils 006-1.
The device was working properly until couple of days ago when I last used it. Now it doesn't show in KDE network manager applet.
This is the dmesg for the device:
[ 2005.964063] usb 5-1: new high-speed USB device number 12 using ehci-pci [ 2006.099008] scsi18 : usb-storage 5-1:1.0 [ 2006.099362] scsi19 : usb-storage 5-1:1.1 [ 2006.752860] usb 5-1: USB disconnect, device number 12 [ 2013.652081] usb 5-1: new high-speed USB device number 13 using ehci-pci [ 2013.787085] option 5-1:1.0: GSM modem (1-port) converter detected [ 2013.787348] usb 5-1: GSM modem (1-port) converter now attached to ttyUSB0 [ 2013.789213] usb 5-1: MAC-Address: 58:2c:80:13:92:63 [ 2013.789618] cdc_ncm 5-1:1.1 wwan0: register 'cdc_ncm' at usb-0000:00:1d.7-1, Mobile Broadband Network Device, 58:2c:80:13:92:63 [ 2013.789734] option 5-1:1.2: GSM modem (1-port) converter detected [ 2013.789890] usb 5-1: GSM modem (1-port) converter now attached to ttyUSB1 [ 2013.790048] option 5-1:1.3: GSM modem (1-port) converter detected [ 2013.790206] usb 5-1: GSM modem (1-port) converter now attached to ttyUSB2 [ 2013.790526] scsi20 : usb-storage 5-1:1.4 [ 2013.790907] scsi21 : usb-storage 5-1:1.5 [ 2014.789086] scsi 20:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 2014.789367] scsi 21:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2 [ 2014.794166] sd 21:0:0:0: [sdb] Attached SCSI removable disk
This is lsusb output:
Bus 005 Device 013: ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard
There is this warning in output from journalctl -b:
NetworkManager: <warn> error poking ModemManager: GDBus.Error:org.freedesktop.systemd1.LoadFailed: Unit dbus-org.freedesktop.ModemManager1.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.ModemManager1.service' for details.
Thanks for any help.
Same problem here with ZTE USB modem.
Having same problem on 3.8.8
I had very similar or maybe the same problem.
My error was:
localhost dbus: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1.service': Unit dbus-org.freedesktop.ModemManager1.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.ModemManager1.service' for details.
I enabled ModemManager.service
systemctl enable ModemManager.service
and started it
systemctl start ModemManager.service
That solved the problem.
So one hypothesis would be that ModemManager is no longer automatically started by it's dbus object name?
+1 same problem
nomis i will try start ModemManager via systemctl. thanks for share.
nomis this solved my problem too.
Last edited by stozi (2013-05-24 19:43:55)
I think today's update solved the issue. I've now disabled ModemManager.service and everything works fine.