Ubuntu
modemmanager package

unable to use Sprint/Franklin U301 modem (16d8:6008, CMOTECH CMO6008) on modern Ubuntu (Wily/Xenial)

Bug #1525392 reported by Wladimir Mutel on 2015-12-11

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	modemmanager (Ubuntu)	New	Undecided	Unassigned

Bug Description

This modem is quite old, its firmware date is from 2008 (as shown in modem-manager-gui)
In NetworkMnaager, it adds 'mobile broadband' icon to the menu, with enable/disable checkbox (which is changed on clicking it).
In NM Connection Editor it allows me to create Mobile Broadband connection, it sees CMOTECH CDMA modem device, and allows me to select country and operator (Ukraine/InterTelecom), which fills dial number, login and password with good-looking strings, but then I was never able to connect to this connection (connect/disconnect buttons are disabled/greyed-out).

in the logs I see this :

Dec 11 22:12:47 hostname kernel: usb 1-2: new high-speed USB device number 15 using xhci_hcd
Dec 11 22:12:47 hostname kernel: usb 1-2: New USB device found, idVendor=1a40, idProduct=0101
Dec 11 22:12:47 hostname kernel: usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Dec 11 22:12:47 hostname kernel: usb 1-2: Product: USB 2.0 Hub [MTT]
Dec 11 22:12:47 hostname kernel: hub 1-2:1.0: USB hub found
Dec 11 22:12:47 hostname kernel: hub 1-2:1.0: 4 ports detected
Dec 11 22:12:50 hostname kernel: usb 1-2.2: new full-speed USB device number 17 using xhci_hcd
Dec 11 22:12:50 hostname kernel: usb 1-2.2: New USB device found, idVendor=16d8, idProduct=6008
Dec 11 22:12:50 hostname kernel: usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 11 22:12:50 hostname kernel: usb 1-2.2: Product: CMOTECH CDMA Technologies
Dec 11 22:12:50 hostname kernel: usb 1-2.2: Manufacturer: CMOTECH CO., LTD.
Dec 11 22:12:50 hostname kernel: qmi_wwan 1-2.2:1.0: cdc-wdm0: USB WDM device
Dec 11 22:12:50 hostname kernel: qmi_wwan 1-2.2:1.0 wwan0: register 'qmi_wwan' at usb-0000:00:14.0-2.2, WWAN/QMI device, e6:d0:dc:04:ec:c2
Dec 11 22:12:50 hostname kernel: option 1-2.2:1.1: GSM modem (1-port) converter detected
Dec 11 22:12:50 hostname kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB0
Dec 11 22:12:50 hostname kernel: option 1-2.2:1.2: GSM modem (1-port) converter detected
Dec 11 22:12:50 hostname kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB1
Dec 11 22:12:50 hostname kernel: option 1-2.2:1.3: GSM modem (1-port) converter detected
Dec 11 22:12:50 hostname kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB2
Dec 11 22:12:50 hostname kernel: usb-storage 1-2.2:1.4: USB Mass Storage device detected
Dec 11 22:12:50 hostname kernel: scsi host8: usb-storage 1-2.2:1.4
Dec 11 22:12:50 hostname mtp-probe[5056]: checking bus 1, device 17: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2"
Dec 11 22:12:50 hostname mtp-probe[5056]: bus: 1, device: 17 was not an MTP device
Dec 11 22:12:50 hostname ModemManager[4666]: <warn> (ttyUSB1): port attributes not fully set
Dec 11 22:12:50 hostname ModemManager[4666]: <warn> (ttyUSB0): port attributes not fully set
Dec 11 22:12:50 hostname ModemManager[4666]: <warn> (ttyUSB2): port attributes not fully set
Dec 11 22:12:51 hostname kernel: scsi 8:0:0:0: CD-ROM CMOTECH Mass Storage 2.31 PQ: 0 ANSI: 6
Dec 11 22:12:51 hostname kernel: sr 8:0:0:0: [sr0] scsi3-mmc drive: 11x/99x xa/form2 caddy
Dec 11 22:12:51 hostname kernel: sr 8:0:0:0: Attached scsi CD-ROM sr0
Dec 11 22:12:51 hostname kernel: sr 8:0:0:0: Attached scsi generic sg1 type 5
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] Opening device with flags 'version-info, proxy'...
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] ctl (1.0)
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] wds (1.1)
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] dms (1.1)
Dec 11 22:12:51 hostname ModemManager[4666]: [/dev/cdc-wdm0] nas (1.0)
Dec 11 22:12:51 hostname NetworkManager[788]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/net/wwan0, iface: wwan0)
Dec 11 22:12:51 hostname NetworkManager[788]: <info> device added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/net/wwan0, iface: wwan0): no ifupdown configuration found.
Dec 11 22:12:59 hostname ModemManager[4666]: <warn> (ttyUSB0): port attributes not fully set
Dec 11 22:13:09 hostname ModemManager[4666]: <info> Creating modem with plugin 'Generic' and '5' ports
Dec 11 22:13:09 hostname ModemManager[4666]: <warn> Could not grab port (tty/ttyUSB2): 'Cannot add port 'tty/ttyUSB2', unhandled serial type'
Dec 11 22:13:09 hostname ModemManager[4666]: <info> Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2' successfully created
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] Opening device with flags 'version-info, net-802-3, net-no-qos-header, proxy'...
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] ctl (1.0)
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] wds (1.1)
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] dms (1.1)
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] nas (1.0)
Dec 11 22:13:09 hostname ModemManager[4666]: [/dev/cdc-wdm0] Setting network port data format...
Dec 11 22:13:09 hostname wpa_supplicant[900]: wlp3s0: WPA: Group rekeying completed with f8:d1:11:33:7b:d4 [GTK=CCMP]
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Opening device with flags 'version-info, proxy'...
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] ctl (1.0)
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] wds (1.1)
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] dms (1.1)
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] nas (1.0)
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Allocating new client ID...
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Registered 'dms' (version 1.1) client with ID '1'
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Allocating new client ID...
Dec 11 22:13:14 hostname ModemManager[4666]: [/dev/cdc-wdm0] Registered 'nas' (version 1.0) client with ID '1'
Dec 11 22:13:14 hostname ModemManager[4666]: <warn> (ttyUSB0): port attributes not fully set
Dec 11 22:13:19 hostname ModemManager[4666]: <warn> couldn't load Supported Bands: 'QMI operation failed: Cannot send message: QMI service 'dms' version '1.3' required, got version '1.1''
Dec 11 22:13:24 hostname ModemManager[4666]: <warn> couldn't load Power State: 'QMI operation failed: Transaction timed out'
Dec 11 22:13:24 hostname ModemManager[4666]: <warn> Couldn't load unlock retries: 'Couldn't get unlock retries: QMI protocol error (25): 'DeviceUnsupported''
Dec 11 22:13:29 hostname ModemManager[4666]: <warn> couldn't load current allowed/preferred modes: 'Loading current modes is not supported by this device'
Dec 11 22:13:29 hostname ModemManager[4666]: <warn> couldn't load current Bands: 'QMI operation failed: Cannot send message: QMI service 'nas' version '1.1' required, got version '1.0''
Dec 11 22:13:29 hostname ModemManager[4666]: <warn> couldn't load MEID: 'Device doesn't report a valid MEID'
Dec 11 22:13:29 hostname ModemManager[4666]: <warn> couldn't load activation state: 'QMI operation failed: Cannot send message: QMI service 'dms' version '1.3' required, got version '1.1''
Dec 11 22:13:29 hostname ModemManager[4666]: <info> Modem: state changed (unknown -> disabled)
Dec 11 22:13:29 hostname NetworkManager[788]: <info> (cdc-wdm0): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Dec 11 22:13:29 hostname NetworkManager[788]: <info> (cdc-wdm0): new Broadband device (carrier: UNKNOWN, driver: 'option1, qmi_wwan', ifindex: 0)
Dec 11 22:13:29 hostname NetworkManager[788]: <info> (cdc-wdm0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 11 22:13:29 hostname ModemManager[4666]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (disabled -> enabling)
Dec 11 22:13:29 hostname ModemManager[4666]: <warn> (ttyUSB0): port attributes not fully set
Dec 11 22:13:29 hostname NetworkManager[788]: <info> (cdc-wdm0): modem state 'enabling'
Dec 11 22:13:29 hostname NetworkManager[788]: <warn> (cdc-wdm0): failed to retrieve SIM object: No SIM object available
Dec 11 22:13:34 hostname ModemManager[4666]: Couldn't reload current power state: QMI operation failed: Transaction timed out
Dec 11 22:13:54 hostname ModemManager[4666]: <info> Modem /org/freedesktop/ModemManager1/Modem/1: state changed (enabling -> disabled)
Dec 11 22:13:54 hostname NetworkManager[788]: <info> (cdc-wdm0): modem state changed, 'enabling' --> 'disabled' (reason: unknown)
Dec 11 22:13:54 hostname NetworkManager[788]: <warn> (cdc-wdm0) failed to enable modem: GDBus.Error:org.freedesktop.libqmi.Error.Core.Timeout: QMI operation failed: Transaction timed out

I notice that ModemManager gets unexpected QMI service versions for dms and nas svcs.
I plugged it into Win10 system, and it worked after minimal manual setup (phone number #777, login and password given by operator)
I tried to replace modemmanager with wader-core but I could not make it work. Returned back to modemmanager.

Please advise what to do next.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: modemmanager 1.4.12-1ubuntu1
ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
Uname: Linux 4.3.0-2-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Dec 11 22:13:19 2015
InstallationDate: Installed on 2009-11-01 (2231 days ago)
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
SourcePackage: modemmanager
UpgradeStatus: No upgrade log present (probably fresh install)

Tags:

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-11:

Dependencies.txt Edit (2.5 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (22.1 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (98 bytes, text/plain; charset="utf-8")

summary:

unable to use Sprint/Franklin U301 modem (16d8:6008, CMOTECH CMO6008) on
- moder Ubuntu (Wily/Xenial)
+ modern Ubuntu (Wily/Xenial)

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-11:

I was given this modem and asked if I could make it work with Linux. I could hold it till next Thursday, after which getting it back for testing could become more difficult. I also tested it with Debian 8.2, also without success (but with different behaviour, at least it was able to initialize & enable modem, and it showed 'InterTelecom' in NM main menu, but then it enters the loop trying to connect to InterTelecom and failing). I will try to collect package versions and logs from Debian.
On the Internet I see some recipes, like 'blacklist some modules', 'force options for some modules', 'downgrade modemmanager package' or the like. But I am unsure what to start from.

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-12:

Download full text (14.3 KiB)

from Debian 8.2, packages :

logs:

from Debian 8.2, packages :

ii  linux-image-3.16.0-4-amd64    3.16.7-ckt11-1+deb8u6  amd64      Linux 3.16 for 64-bit PCs
ii  modemmanager                          1.4.0-1                                 amd64      D-Bus service for managing modems
ii  network-manager                       0.9.10.0-7                           amd64      network management framework (daemon and userspace tools)

logs:

Dec 11 22:41:49 debian kernel: usb 1-2.2: new full-speed USB device number 6 using xhci_hcd
Dec 11 22:41:49 debian kernel: usb 1-2.2: device descriptor read/64, error -32
Dec 11 22:41:49 debian kernel: usb 1-2.2: New USB device found, idVendor=16d8, idProduct=6008
Dec 11 22:41:49 debian kernel: usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 11 22:41:49 debian kernel: usb 1-2.2: Product: CMOTECH CDMA Technologies
Dec 11 22:41:49 debian kernel: usb 1-2.2: Manufacturer: CMOTECH CO., LTD.
Dec 11 22:41:49 debian kernel: usb-storage 1-2.2:1.4: USB Mass Storage device detected
Dec 11 22:41:49 debian kernel: scsi5 : usb-storage 1-2.2:1.4
Dec 11 22:41:49 debian kernel: scsi 5:0:0:0: CD-ROM            CMOTECH  Mass Storage     2.31 PQ: 0 ANSI: 6
Dec 11 22:41:49 debian kernel: scsi 5:0:0:0: Attached scsi generic sg2 type 5
Dec 11 22:41:49 debian kernel: sr0: scsi3-mmc drive: 85x/0x cdda 
Dec 11 22:41:49 debian kernel: cdrom: Uniform CD-ROM driver Revision: 3.20
Dec 11 22:41:49 debian kernel: sr 5:0:0:0: Attached scsi CD-ROM sr0
Dec 11 22:41:49 debian kernel: sr0: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00
Dec 11 22:41:49 debian kernel: sr: Sense Key : Hardware Error [current] 
Dec 11 22:41:49 debian kernel: sr: Add. Sense: No additional sense information
Dec 11 22:41:50 debian mtp-probe[234]: checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2"
Dec 11 22:41:50 debian mtp-probe[237]: checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-5"
Dec 11 22:41:50 debian mtp-probe[238]: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-6"
Dec 11 22:41:50 debian mtp-probe[233]: checking bus 1, device 2: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
Dec 11 22:41:50 debian mtp-probe[233]: bus: 1, device: 2 was not an MTP device
Dec 11 22:41:50 debian mtp-probe[237]: bus: 1, device: 4 was not an MTP device
Dec 11 22:41:50 debian mtp-probe[238]: bus: 1, device: 5 was not an MTP device
Dec 11 22:41:50 debian mtp-probe[234]: bus: 1, device: 6 was not an MTP device
Dec 11 22:41:51 debian kernel: usbcore: registered new interface driver cdc_wdm
Dec 11 22:41:51 debian kernel: qmi_wwan 1-2.2:1.0: cdc-wdm0: USB WDM device
Dec 11 22:41:51 debian kernel: qmi_wwan 1-2.2:1.0 wwan0: register 'qmi_wwan' at usb-0000:00:14.0-2.2, WWAN/QMI device, be:1d:e8:35:e4:4f
Dec 11 22:41:51 debian kernel: usbcore: registered new interface driver qmi_wwan
Dec 11 22:41:51 debian kernel: usbcore: registered new interface driver usbserial
Dec 11 22:41:51 debian kernel: usbcore: registered new interface driver usbserial_generic
Dec 11 22:41:51 debian kernel: usbserial: USB Serial support registered for generic
Dec 11 22:41:51 debian kernel: usbcore: registered new interface driver option
Dec 11 22:41:51 debian kernel: usbserial: USB Serial support registered for GSM modem (1-port)
Dec 11 22:41:51 debian kernel: option 1-2.2:1.1: GSM modem (1-port) converter detected
Dec 11 22:41:51 debian kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB0
Dec 11 22:41:51 debian kernel: option 1-2.2:1.2: GSM modem (1-port) converter detected
Dec 11 22:41:51 debian kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB1
Dec 11 22:41:51 debian kernel: option 1-2.2:1.3: GSM modem (1-port) converter detected
Dec 11 22:41:51 debian kernel: usb 1-2.2: GSM modem (1-port) converter now attached to ttyUSB2
Dec 11 22:41:54 debian ModemManager[542]: <info>  ModemManager (version 1.4.0) starting in system bus...
Dec 11 22:41:55 debian NetworkManager[545]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/net/wwan0, iface: wwan0)
Dec 11 22:41:55 debian NetworkManager[545]: <info> device added (path: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0/net/wwan0, iface: wwan0): no ifupdown configuration found.
Dec 11 22:41:55 debian NetworkManager[545]: <info> ModemManager disappeared from bus
Dec 11 22:41:55 debian NetworkManager[545]: <info> ModemManager available in the bus
Dec 11 22:41:55 debian ModemManager[542]: <warn>  (ttyUSB0): port attributes not fully set
Dec 11 22:41:55 debian ModemManager[542]: <warn>  (ttyUSB1): port attributes not fully set
Dec 11 22:41:55 debian ModemManager[542]: <warn>  (ttyUSB2): port attributes not fully set
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0] Opening device with flags 'version-info, proxy'...
Dec 11 22:41:55 debian ModemManager[542]: cannot connect to proxy: Could not connect: Connection refused
Dec 11 22:41:55 debian ModemManager[542]: spawning new qmi-proxy (try 1)...
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0]    ctl (1.0)
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0]    wds (1.1)
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0]    dms (1.1)
Dec 11 22:41:55 debian ModemManager[542]: [/dev/cdc-wdm0]    nas (1.0)
Dec 11 22:41:57 debian ModemManager[542]: <warn>  Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1c.2/0000:02:00.0': not supported by any plugin
Dec 11 22:41:57 debian ModemManager[542]: <warn>  (ttyUSB0): port attributes not fully set
Dec 11 22:41:59 debian ModemManager[542]: <warn>  (ttyUSB0): port attributes not fully set
Dec 11 22:42:14 debian ModemManager[542]: <info>  Creating modem with plugin 'Generic' and '5' ports
Dec 11 22:42:14 debian ModemManager[542]: <warn>  Could not grab port (tty/ttyUSB2): 'Cannot add port 'tty/ttyUSB2', unhandled serial type'
Dec 11 22:42:14 debian ModemManager[542]: <info>  Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2' successfully created
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0] Opening device with flags 'version-info, net-802-3, net-no-qos-header, proxy'...
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0]    ctl (1.0)
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0]    wds (1.1)
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0]    dms (1.1)
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0]    nas (1.0)
Dec 11 22:42:14 debian ModemManager[542]: [/dev/cdc-wdm0] Setting network port data format...
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0] Opening device with flags 'version-info, proxy'...
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0] Checking version info (10 retries)...
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0] QMI Device supports 4 services:
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0]    ctl (1.0)
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0]    wds (1.1)
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0]    dms (1.1)
Dec 11 22:42:19 debian ModemManager[542]: [/dev/cdc-wdm0]    nas (1.0)
Dec 11 22:42:23 debian ModemManager[542]: [/dev/cdc-wdm0] Allocating new client ID...
Dec 11 22:42:23 debian ModemManager[542]: [/dev/cdc-wdm0] Registered 'dms' (version 1.1) client with ID '2'
Dec 11 22:42:25 debian ModemManager[542]: [/dev/cdc-wdm0] Allocating new client ID...
Dec 11 22:42:25 debian ModemManager[542]: [/dev/cdc-wdm0] Registered 'nas' (version 1.0) client with ID '2'
Dec 11 22:42:25 debian ModemManager[542]: <warn>  (ttyUSB0): port attributes not fully set
Dec 11 22:42:30 debian ModemManager[542]: <warn>  couldn't load Supported Bands: 'QMI operation failed: Cannot send message: QMI service 'dms' version '1.3' required, got version '1.1''
Dec 11 22:42:35 debian ModemManager[542]: <warn>  couldn't load Power State: 'QMI operation failed: Transaction timed out'
Dec 11 22:42:35 debian ModemManager[542]: <warn>  Couldn't load unlock retries: 'Couldn't get unlock retries: QMI protocol error (25): 'DeviceUnsupported''
Dec 11 22:42:40 debian ModemManager[542]: <warn>  couldn't load current allowed/preferred modes: 'Loading current modes is not supported by this device'
Dec 11 22:42:41 debian ModemManager[542]: <warn>  couldn't load current Bands: 'QMI operation failed: Cannot send message: QMI service 'nas' version '1.1' required, got version '1.0''
Dec 11 22:42:41 debian ModemManager[542]: <warn>  couldn't load MEID: 'Device doesn't report a valid MEID'
Dec 11 22:42:41 debian ModemManager[542]: <warn>  couldn't load activation state: 'QMI operation failed: Cannot send message: QMI service 'dms' version '1.3' required, got version '1.1''
Dec 11 22:42:41 debian ModemManager[542]: <info>  Modem: state changed (unknown -> disabled)
Dec 11 22:42:41 debian NetworkManager[545]: <warn> (cdc-wdm0): failed to look up interface index
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): modem state changed, 'disabled' --> 'enabling' (reason: user preference)
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): new Broadband device (driver: 'option1, qmi_wwan' ifindex: 0)
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): exported as /org/freedesktop/NetworkManager/Devices/2
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): preparing device
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): modem state 'enabling'
Dec 11 22:42:41 debian NetworkManager[545]: <info> (cdc-wdm0): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Dec 11 22:42:43 debian ModemManager[542]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
Dec 11 22:42:43 debian ModemManager[542]: <warn>  (ttyUSB0): port attributes not fully set
Dec 11 22:42:48 debian ModemManager[542]: Couldn't reload current power state: QMI operation failed: Transaction timed out
Dec 11 22:43:06 debian NetworkManager[545]: <warn> (cdc-wdm0) failed to enable modem: Час очікування вичерпано
Dec 11 22:43:08 debian ModemManager[542]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> disabled)
Dec 11 22:43:08 debian NetworkManager[545]: <info> (cdc-wdm0): modem state changed, 'enabling' --> 'disabled' (reason: unknown)
Dec 11 22:47:21 debian NetworkManager[545]: <info> Auto-activating connection 'InterTelecom'.
Dec 11 22:47:21 debian NetworkManager[545]: <info> Activation (cdc-wdm0) starting connection 'InterTelecom'
Dec 11 22:47:21 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) scheduled...
Dec 11 22:47:21 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) started...
Dec 11 22:47:21 debian NetworkManager[545]: <info> (cdc-wdm0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Dec 11 22:47:21 debian NetworkManager[545]: <info> NetworkManager state is now CONNECTING
Dec 11 22:47:21 debian ModemManager[542]: <info>  Simple connect started...
Dec 11 22:47:21 debian ModemManager[542]: <info>  Simple connect state (3/8): Enable
Dec 11 22:47:21 debian ModemManager[542]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
Dec 11 22:47:21 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) complete.
Dec 11 22:47:21 debian NetworkManager[545]: <info> (cdc-wdm0): modem state changed, 'disabled' --> 'enabling' (reason: user-requested)
Dec 11 22:47:26 debian ModemManager[542]: Couldn't reload current power state: QMI operation failed: Transaction timed out
Dec 11 22:47:26 debian anacron[539]: Job `cron.daily' terminated
Dec 11 22:47:46 debian ModemManager[542]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> disabled)
Dec 11 22:47:46 debian NetworkManager[545]: <info> (cdc-wdm0): modem state changed, 'enabling' --> 'disabled' (reason: unknown)
Dec 11 22:47:46 debian NetworkManager[545]: <info> (cdc-wdm0): device state change: prepare -> disconnected (reason 'user-requested') [40 30 39]
Dec 11 22:47:46 debian NetworkManager[545]: <info> (cdc-wdm0): deactivating device (reason 'user-requested') [39]
Dec 11 22:47:46 debian NetworkManager[545]: <info> NetworkManager state is now DISCONNECTED
Dec 11 22:47:46 debian NetworkManager[545]: <warn> (cdc-wdm0) failed to connect modem: QMI operation failed: Transaction timed out
Dec 11 22:47:46 debian NetworkManager[545]: <info> Auto-activating connection 'InterTelecom'.
Dec 11 22:47:46 debian NetworkManager[545]: <info> Activation (cdc-wdm0) starting connection 'InterTelecom'
Dec 11 22:47:46 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) scheduled...
Dec 11 22:47:46 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) started...
Dec 11 22:47:46 debian NetworkManager[545]: <info> (cdc-wdm0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Dec 11 22:47:46 debian NetworkManager[545]: <info> NetworkManager state is now CONNECTING
Dec 11 22:47:46 debian NetworkManager[545]: <info> Activation (cdc-wdm0) Stage 1 of 5 (Device Prepare) complete.
Dec 11 22:47:46 debian NetworkManager[545]: (NetworkManager:545): NetworkManager-wwan-CRITICAL **: modem_prepare_result: assertion 'state == NM_DEVICE_STATE_PREPARE' failed
Dec 11 22:47:46 debian ModemManager[542]: <info>  Simple connect started...
Dec 11 22:47:46 debian ModemManager[542]: <info>  Simple connect state (3/8): Enable
Dec 11 22:47:46 debian ModemManager[542]: <info>  Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling)
Dec 11 22:47:46 debian NetworkManager[545]: <info> (cdc-wdm0): modem state changed, 'disabled' --> 'enabling' (reason: user-requested)
Dec 11 22:47:51 debian ModemManager[542]: Couldn't reload current power state: QMI operation failed: Transaction timed out

... and so on. I see that ModemManager is equally unable to initialize the modem. NetworkManager acts differently most probably because of version difference.

Next I will try to run this mode with older Ubuntus, like 12.04

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-13:

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To my big surprise, it worked with Kubuntu 12.04
So it is a clear regression, most probably caused by adding QMI&MBIM support to the kernel and to the ModemManager, also by ModemManager relying on newer QMI versions than those provided by older modems, and by absence of testing ModemManager on this hardware, old now but once quite popular in its times.
In Kubuntu Precise it works using just usb/option driver, without qmi/mbim

packages :

logs:

packages :

ii  linux-image-3.2.0-95-generic               3.2.0-95.135                            Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  modemmanager                               0.5.2.0-0ubuntu2                        D-Bus service for managing modems
ii  network-manager                            0.9.4.0-0ubuntu4.4.1                    network management framework (daemon and userspace tools)

logs:

Dec 13 11:39:13 ubuntu kernel: [  411.764690] usb 2-1.1: new high-speed USB device number 4 using ehci_hcd
Dec 13 11:39:13 ubuntu kernel: [  411.857680] hub 2-1.1:1.0: USB hub found
Dec 13 11:39:13 ubuntu kernel: [  411.861050] hub 2-1.1:1.0: 4 ports detected
Dec 13 11:39:15 ubuntu kernel: [  414.094366] hub 2-1.1:1.0: unable to enumerate USB device on port 2
Dec 13 11:39:16 ubuntu kernel: [  414.645213] usb 2-1.1.2: new full-speed USB device number 6 using ehci_hcd
Dec 13 11:39:16 ubuntu mtp-probe: checking bus 2, device 6: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1.2"
Dec 13 11:39:16 ubuntu kernel: [  414.742807] scsi5 : usb-storage 2-1.1.2:1.4
Dec 13 11:39:16 ubuntu mtp-probe: bus: 2, device: 6 was not an MTP device
Dec 13 11:39:16 ubuntu kernel: [  415.190358] usbcore: registered new interface driver usbserial
Dec 13 11:39:16 ubuntu kernel: [  415.190386] USB Serial support registered for generic
Dec 13 11:39:16 ubuntu kernel: [  415.190489] usbcore: registered new interface driver usbserial_generic
Dec 13 11:39:16 ubuntu kernel: [  415.190493] usbserial: USB Serial Driver core
Dec 13 11:39:16 ubuntu kernel: [  415.199770] USB Serial support registered for GSM modem (1-port)
Dec 13 11:39:16 ubuntu kernel: [  415.200560] option 2-1.1.2:1.1: GSM modem (1-port) converter detected
Dec 13 11:39:16 ubuntu kernel: [  415.200764] usb 2-1.1.2: GSM modem (1-port) converter now attached to ttyUSB0
Dec 13 11:39:16 ubuntu kernel: [  415.200839] option 2-1.1.2:1.2: GSM modem (1-port) converter detected
Dec 13 11:39:16 ubuntu kernel: [  415.201051] usb 2-1.1.2: GSM modem (1-port) converter now attached to ttyUSB1
Dec 13 11:39:16 ubuntu kernel: [  415.201126] option 2-1.1.2:1.3: GSM modem (1-port) converter detected
Dec 13 11:39:16 ubuntu kernel: [  415.201330] usb 2-1.1.2: GSM modem (1-port) converter now attached to ttyUSB2
Dec 13 11:39:16 ubuntu kernel: [  415.201373] usbcore: registered new interface driver option
Dec 13 11:39:16 ubuntu kernel: [  415.201377] option: v0.7.2:USB Driver for GSM modems
Dec 13 11:39:16 ubuntu modem-manager[1060]: <info>  (ttyUSB1) opening serial port...
Dec 13 11:39:16 ubuntu modem-manager[1060]: <info>  (ttyUSB0) opening serial port...
Dec 13 11:39:16 ubuntu modem-manager[1060]: <info>  (ttyUSB2) opening serial port...
Dec 13 11:39:17 ubuntu kernel: [  415.741615] scsi 5:0:0:0: CD-ROM            CMOTECH  Mass Storage     2.31 PQ: 0 ANSI: 6
Dec 13 11:39:17 ubuntu kernel: [  415.775562] sr0: scsi3-mmc drive: 0x/0x caddy
Dec 13 11:39:17 ubuntu kernel: [  415.775569] cdrom: Uniform CD-ROM driver Revision: 3.20
Dec 13 11:39:17 ubuntu kernel: [  415.776461] sr 5:0:0:0: Attached scsi CD-ROM sr0
Dec 13 11:39:17 ubuntu kernel: [  415.776807] sr 5:0:0:0: Attached scsi generic sg2 type 5
Dec 13 11:39:17 ubuntu kernel: [  415.875299] sr0: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00
Dec 13 11:39:17 ubuntu kernel: [  415.875321] sr: Sense Key : Hardware Error [current] 
Dec 13 11:39:17 ubuntu kernel: [  415.875329] sr: Add. Sense: No additional sense information
Dec 13 11:39:17 ubuntu ata_id[2501]: HDIO_GET_IDENTITY failed for '/dev/sr0': Invalid argument
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (ttyUSB0) closing serial port...
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (ttyUSB0) serial port closed
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (ttyUSB0) opening serial port...
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (Generic): CDMA modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1.2 claimed port ttyUSB0
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (ttyUSB0) closing serial port...
Dec 13 11:39:17 ubuntu modem-manager[1060]: <info>  (ttyUSB0) serial port closed
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB1) closing serial port...
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB1) serial port closed
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB1) opening serial port...
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB2) closing serial port...
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB2) serial port closed
Dec 13 11:39:29 ubuntu modem-manager[1060]: <info>  (ttyUSB2) opening serial port...
Dec 13 11:39:32 ubuntu modem-manager[1060]: <info>  (ttyUSB1) closing serial port...
Dec 13 11:39:32 ubuntu modem-manager[1060]: <info>  (ttyUSB1) serial port closed
Dec 13 11:39:32 ubuntu modem-manager[1060]: <info>  (Generic): CDMA modem /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1.2 claimed port ttyUSB1
Dec 13 11:39:35 ubuntu modem-manager[1060]: <info>  (ttyUSB2) closing serial port...
Dec 13 11:39:35 ubuntu modem-manager[1060]: <info>  (ttyUSB2) serial port closed
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <warn> (ttyUSB0): failed to look up interface index
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): new CDMA/EVDO device (driver: 'option1' ifindex: 0)
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): exported as /org/freedesktop/NetworkManager/Devices/2
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): now managed
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): deactivating device (reason 'managed') [2]
Dec 13 11:39:35 ubuntu NetworkManager[1086]: nm_system_iface_flush_routes: assertion `ifindex > 0' failed
Dec 13 11:39:35 ubuntu NetworkManager[1086]: nm_system_iface_flush_addresses: assertion `ifindex > 0' failed
Dec 13 11:39:35 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Dec 13 11:39:41 ubuntu ata_id[2563]: HDIO_GET_IDENTITY failed for '/dev/sr0': Invalid argument
Dec 13 11:41:43 ubuntu modem-manager[1060]: <info>  (ttyUSB0) opening serial port...
Dec 13 11:41:43 ubuntu modem-manager[1060]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (disabled -> enabling)
Dec 13 11:41:43 ubuntu modem-manager[1060]: <info>  (ttyUSB1) opening serial port...
Dec 13 11:41:43 ubuntu modem-manager[1060]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabling -> enabled)
Dec 13 11:41:43 ubuntu NetworkManager[1086]: <info> WWAN now enabled by management service
Dec 13 11:41:43 ubuntu modem-manager[1060]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabled -> registered)
Dec 13 11:43:22 ubuntu NetworkManager[1086]:    keyfile: updating /etc/NetworkManager/system-connections/InterTelecom
Dec 13 11:43:27 ubuntu NetworkManager[1086]:    keyfile: updating /etc/NetworkManager/system-connections/InterTelecom
Dec 13 11:44:46 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) starting connection 'InterTelecom'
Dec 13 11:44:46 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Dec 13 11:44:46 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
Dec 13 11:44:46 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
Dec 13 11:44:46 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete.
Dec 13 11:44:46 ubuntu modem-manager[1060]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (registered -> connecting)
Dec 13 11:44:48 ubuntu modem-manager[1060]: <info>  Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> connected)
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) scheduled...
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) starting...
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: prepare -> config (reason 'none') [40 50 0]
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) successful.
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) scheduled.
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 2 of 5 (Device Configure) complete.
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) started...
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: config -> ip-config (reason 'none') [50 70 0]
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> starting PPP connection
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> pppd started with pid 2903
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) complete.
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Dec 13 11:44:48 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Dec 13 11:44:48 ubuntu pppd[2903]: Plugin /usr/lib/pppd/2.4.5/nm-pppd-plugin.so loaded.
Dec 13 11:44:48 ubuntu pppd[2903]: pppd 2.4.5 started by root, uid 0
Dec 13 11:44:48 ubuntu NetworkManager[1086]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Dec 13 11:44:48 ubuntu NetworkManager[1086]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Dec 13 11:44:48 ubuntu pppd[2903]: Using interface ppp0
Dec 13 11:44:48 ubuntu pppd[2903]: Connect: ppp0 <--> /dev/ttyUSB0
Dec 13 11:44:48 ubuntu pppd[2903]: PAP authentication succeeded
Dec 13 11:44:50 ubuntu kernel: [  748.595236] PPP BSD Compression module registered
Dec 13 11:44:53 ubuntu kernel: [  752.131756] PPP Deflate Compression module registered
Dec 13 11:44:55 ubuntu pppd[2903]: local  IP address 10.144.4.31
Dec 13 11:44:55 ubuntu pppd[2903]: remote IP address 78.111.176.141
Dec 13 11:44:55 ubuntu pppd[2903]: primary   DNS address 192.168.4.46
Dec 13 11:44:55 ubuntu pppd[2903]: secondary DNS address 192.168.4.45
Dec 13 11:44:55 ubuntu NetworkManager[1086]: <info> PPP manager(IP Config Get) reply received.
Dec 13 11:44:55 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 5 of 5 (IPv4 Configure Commit) scheduled...
Dec 13 11:44:55 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 5 of 5 (IPv4 Commit) started...
Dec 13 11:44:56 ubuntu NetworkManager[1086]: <info> (ppp0): writing resolv.conf to /sbin/resolvconf
Dec 13 11:44:56 ubuntu dnsmasq[2215]: setting upstream servers from DBus
Dec 13 11:44:56 ubuntu dnsmasq[2215]: using nameserver 192.168.4.45#53
Dec 13 11:44:56 ubuntu dnsmasq[2215]: using nameserver 192.168.4.46#53
Dec 13 11:44:56 ubuntu NetworkManager[1086]: <info> (ttyUSB0): device state change: ip-config -> activated (reason 'none') [70 100 0]
Dec 13 11:45:54 ubuntu NetworkManager[1086]: <info> Policy set 'InterTelecom' (ppp0) as default for IPv4 routing and DNS.
Dec 13 11:45:54 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) successful, device activated.
Dec 13 11:45:54 ubuntu NetworkManager[1086]: <info> Activation (ttyUSB0) Stage 5 of 5 (IPv4 Commit) complete.
Dec 13 11:45:54 ubuntu dbus[1041]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Dec 13 11:45:54 ubuntu dbus[1041]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-13:

It did not work with default setup of Kubuntu 14.04, but I made it work after blacklisting modules qmi_wwan & cdc_wdm as recommended at some Internet pages like http://kubuntu.ru/node/13046 (https://translate.google.com/translate?sl=ru&tl=en&js=y&prev=_t&hl=uk&ie=UTF-8&u=http%3A%2F%2Fkubuntu.ru%2Fnode%2F13046&edit-text=&act=url)

Anyway I would call this a regression : what's the point of supporting QMI/CDC/WDM in the kernel, if ModemManager does not support older versions of QMI services ? Why break support of existing hardware by these 'improvements' ? Why make plain users find workarounds for this problem ?

Don't know if it is worth to append this bug also to 'linux' package, or leave it to 'modemmanager' only.

Revision history for this message

Wladimir Mutel (mwg) wrote on 2015-12-15:

created related ModemManager bug https://bugs.freedesktop.org/show_bug.cgi?id=93392