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Thread: Problems with Huawei E1750 - discovery issues on system load

  1. #1
    Join Date
    Oct 2011
    Beans
    23

    Problems with Huawei E1750 - discovery issues on system load

    I am having problems with the E1750 modem discovery when I turn the computer on, with it plugged in, and let the system load. It seems it is discovered but Network Manager acts like it doesn't see it. Meaning, my default mobile internet connection won't show up on the list and I can't connect. If my memory serves me well, when I had 11.04 soon after it came out I had no problems, but after one of the updates it started to behave like that. Now I have 11.10 and the problem persists. When I unplug and plug it in everything is fine, but I don't want to do it everytime I load the system.

    I'm new to ubuntu and linux generally and I don't know enough to solve it myself. I'd be grateful if anyone could help find a solution.

    PS.
    I searched through the forum, but nothing is really similar to what I experienced.

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,963
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: Problems with Huawei E1750 - discovery issues on system load

    Hi,

    please show the terminal outputs of:

    Code:
    lsusb
    lsmod
    usb-devices
    in non-connected and connected state

  3. #3
    Join Date
    Oct 2011
    Beans
    23

    Re: Problems with Huawei E1750 - discovery issues on system load

    Here's connected state:

    Code:
    lsusb connected
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 003: ID 090c:37b3 Feiya Technology Corp. 
    Bus 002 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
    Bus 002 Device 006: ID 1020:030a Labtec 
    Bus 002 Device 009: ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem
    Bus 002 Device 010: ID 4971:ce21 SimpleTech 
    
    lsmod connected
    Module                  Size  Used by
    ppp_deflate            12878  0 
    zlib_deflate           26622  1 ppp_deflate
    bsd_comp               12842  0 
    ppp_async              17307  1 
    option                 21205  2 
    usb_wwan               19779  1 option
    usbserial              37203  7 option,usb_wwan
    bnep                   17923  2 
    rfcomm                 38408  0 
    bluetooth             148839  10 bnep,rfcomm
    parport_pc             32114  0 
    ppdev                  12849  0 
    binfmt_misc            17292  1 
    vesafb                 13489  1 
    joydev                 17393  0 
    snd_hda_codec_hdmi     31426  4 
    wl                   2646601  0 
    lib80211               14570  1 wl
    bcma                   19571  0 
    arc4                   12473  2 
    snd_hda_codec_conexant    52418  1 
    snd_seq_midi           13132  0 
    snd_hda_intel          24262  3 
    snd_hda_codec          91754  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
    snd_hwdep              13276  1 snd_hda_codec
    snd_rawmidi            25241  1 snd_seq_midi
    snd_pcm                80468  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    snd_seq_midi_event     14475  1 snd_seq_midi
    snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
    nvidia              10390874  43 
    snd_timer              28932  2 snd_pcm,snd_seq
    psmouse                73673  0 
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    serio_raw              12990  0 
    uvcvideo               67271  0 
    videodev               85626  1 uvcvideo
    snd                    55902  16 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_rawmidi,snd_pcm,snd_seq,snd_timer,snd_seq_device
    ideapad_laptop         13575  0 
    sparse_keymap          13658  1 ideapad_laptop
    brcmsmac              591864  0 
    brcmutil               16885  1 brcmsmac
    mac80211              272785  1 brcmsmac
    video                  18908  0 
    wmi                    18744  0 
    cfg80211              172392  2 brcmsmac,mac80211
    crc_ccitt              12595  2 ppp_async,brcmsmac
    soundcore              12600  1 snd
    snd_page_alloc         14115  2 snd_hda_intel,snd_pcm
    mei                    36466  0 
    lp                     17455  0 
    parport                40930  3 parport_pc,ppdev,lp
    usbhid                 41905  0 
    hid                    77367  1 usbhid
    ums_realtek            13096  0 
    usb_storage            44173  5 ums_realtek
    uas                    17699  0 
    r8169                  43104  0 
    ahci                   21634  3 
    libahci                25727  1 ahci
    
    usb-devices connected
    T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1a.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 6
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1d.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 8
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=4971 ProdID=ce21 Rev=00.00
    S:  Manufacturer=Hitachi GST
    S:  Product=SimpleDrive mini
    S:  SerialNumber=25120101020301BF
    C:  #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=2mA
    I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    
    T:  Bus=02 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#=  9 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=12d1 ProdID=1001 Rev=00.00
    S:  Manufacturer=HUAWEI Technology
    S:  Product=HUAWEI Mobile
    C:  #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
    I:  If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
    I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
    I:  If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    I:  If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    
    T:  Bus=02 Lev=02 Prnt=02 Port=02 Cnt=03 Dev#=  3 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=090c ProdID=37b3 Rev=08.16
    S:  Manufacturer=Image Processor
    S:  Product=Lenovo EasyCamera
    S:  SerialNumber=Integrated Camera
    C:  #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
    I:  If#= 1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo
    
    T:  Bus=02 Lev=02 Prnt=02 Port=03 Cnt=04 Dev#=  4 Spd=480 MxCh= 4
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=05e3 ProdID=0608 Rev=77.61
    S:  Product=USB2.0 Hub
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=03 Prnt=04 Port=03 Cnt=01 Dev#=  6 Spd=1.5 MxCh= 0
    D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
    P:  Vendor=1020 ProdID=030a Rev=01.04
    S:  Manufacturer=PATEN
    S:  Product=USB HID Device        
    C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=usbhid

    Not-connected state:

    Code:
    
    lsusb not connected
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 003: ID 090c:37b3 Feiya Technology Corp. 
    Bus 002 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
    Bus 002 Device 006: ID 1020:030a Labtec 
    Bus 002 Device 010: ID 4971:ce21 SimpleTech 
    
    lsmod not connected
    Module                  Size  Used by
    ppp_deflate            12878  0 
    zlib_deflate           26622  1 ppp_deflate
    bsd_comp               12842  0 
    ppp_async              17307  0 
    option                 21205  0 
    usb_wwan               19779  1 option
    usbserial              37203  2 option,usb_wwan
    bnep                   17923  2 
    rfcomm                 38408  0 
    bluetooth             148839  10 bnep,rfcomm
    parport_pc             32114  0 
    ppdev                  12849  0 
    binfmt_misc            17292  1 
    vesafb                 13489  1 
    joydev                 17393  0 
    snd_hda_codec_hdmi     31426  4 
    wl                   2646601  0 
    lib80211               14570  1 wl
    bcma                   19571  0 
    arc4                   12473  2 
    snd_hda_codec_conexant    52418  1 
    snd_seq_midi           13132  0 
    snd_hda_intel          24262  3 
    snd_hda_codec          91754  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
    snd_hwdep              13276  1 snd_hda_codec
    snd_rawmidi            25241  1 snd_seq_midi
    snd_pcm                80468  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    snd_seq_midi_event     14475  1 snd_seq_midi
    snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
    nvidia              10390874  43 
    snd_timer              28932  2 snd_pcm,snd_seq
    psmouse                73673  0 
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    serio_raw              12990  0 
    uvcvideo               67271  0 
    videodev               85626  1 uvcvideo
    snd                    55902  16 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_rawmidi,snd_pcm,snd_seq,snd_timer,snd_seq_device
    ideapad_laptop         13575  0 
    sparse_keymap          13658  1 ideapad_laptop
    brcmsmac              591864  0 
    brcmutil               16885  1 brcmsmac
    mac80211              272785  1 brcmsmac
    video                  18908  0 
    wmi                    18744  0 
    cfg80211              172392  2 brcmsmac,mac80211
    crc_ccitt              12595  2 ppp_async,brcmsmac
    soundcore              12600  1 snd
    snd_page_alloc         14115  2 snd_hda_intel,snd_pcm
    mei                    36466  0 
    lp                     17455  0 
    parport                40930  3 parport_pc,ppdev,lp
    usbhid                 41905  0 
    hid                    77367  1 usbhid
    ums_realtek            13096  0 
    usb_storage            44173  5 ums_realtek
    uas                    17699  0 
    r8169                  43104  0 
    ahci                   21634  3 
    libahci                25727  1 ahci
    
    usb-devices not connected
    T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1a.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 6
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1d.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 8
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=4971 ProdID=ce21 Rev=00.00
    S:  Manufacturer=Hitachi GST
    S:  Product=SimpleDrive mini
    S:  SerialNumber=25120101020301BF
    C:  #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=2mA
    I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    
    T:  Bus=02 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#=  3 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=090c ProdID=37b3 Rev=08.16
    S:  Manufacturer=Image Processor
    S:  Product=Lenovo EasyCamera
    S:  SerialNumber=Integrated Camera
    C:  #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
    I:  If#= 1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo
    
    T:  Bus=02 Lev=02 Prnt=02 Port=03 Cnt=03 Dev#=  4 Spd=480 MxCh= 4
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=05e3 ProdID=0608 Rev=77.61
    S:  Product=USB2.0 Hub
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=03 Prnt=04 Port=03 Cnt=01 Dev#=  6 Spd=1.5 MxCh= 0
    D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
    P:  Vendor=1020 ProdID=030a Rev=01.04
    S:  Manufacturer=PATEN
    S:  Product=USB HID Device        
    C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=usbhid

  4. #4
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,963
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: Problems with Huawei E1750 - discovery issues on system load

    Did you install usb-modeswitch?

  5. #5
    Join Date
    Oct 2011
    Beans
    23

    Re: Problems with Huawei E1750 - discovery issues on system load

    Yes, it's installed.

    By the way. Last time I didn't use those commands after boot. Here is what you requested right after the system started. Also I forgot about one thing. The modem won't start flashing blue sometimes. After I plug it in the diode is flashing green twice every few seconds then it settles on single blue flash now and then. Today I had to plug it into a different USB slot to make it work.

    Connected after boot:
    Code:
    lsusb connected after boot
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 003: ID 090c:37b3 Feiya Technology Corp. 
    Bus 002 Device 005: ID 12d1:1446 Huawei Technologies Co., Ltd. E1552 (HSPA modem)
    
    lsmod connected after boot
    Module                  Size  Used by
    rfcomm                 38408  0 
    bnep                   17923  2 
    bluetooth             148839  10 rfcomm,bnep
    parport_pc             32114  0 
    ppdev                  12849  0 
    binfmt_misc            17292  1 
    vesafb                 13489  1 
    snd_hda_codec_hdmi     31426  4 
    nvidia              10390874  43 
    snd_hda_codec_conexant    52418  1 
    snd_hda_intel          24262  3 
    snd_hda_codec          91754  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
    snd_hwdep              13276  1 snd_hda_codec
    wl                   2646601  0 
    snd_pcm                80468  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    joydev                 17393  0 
    snd_seq_midi           13132  0 
    snd_rawmidi            25241  1 snd_seq_midi
    snd_seq_midi_event     14475  1 snd_seq_midi
    lib80211               14570  1 wl
    bcma                   19571  0 
    uvcvideo               67271  0 
    videodev               85626  1 uvcvideo
    arc4                   12473  2 
    snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
    snd_timer              28932  2 snd_pcm,snd_seq
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    brcmsmac              591864  0 
    snd                    55902  16 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
    ideapad_laptop         13575  0 
    sparse_keymap          13658  1 ideapad_laptop
    psmouse                73673  0 
    serio_raw              12990  0 
    brcmutil               16885  1 brcmsmac
    mei                    36466  0 
    soundcore              12600  1 snd
    mac80211              272785  1 brcmsmac
    cfg80211              172392  2 brcmsmac,mac80211
    crc_ccitt              12595  1 brcmsmac
    snd_page_alloc         14115  2 snd_hda_intel,snd_pcm
    video                  18908  0 
    wmi                    18744  0 
    lp                     17455  0 
    parport                40930  3 parport_pc,ppdev,lp
    ums_realtek            13096  0 
    usb_storage            44173  1 ums_realtek
    uas                    17699  0 
    r8169                  43104  0 
    ahci                   21634  3 
    libahci                25727  1 ahci
    
    usb-devices after boot
    T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1a.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 6
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 3
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=1d6b ProdID=0002 Rev=03.00
    S:  Manufacturer=Linux 3.0.0-12-generic ehci_hcd
    S:  Product=EHCI Host Controller
    S:  SerialNumber=0000:00:1d.0
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 8
    D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=8087 ProdID=0020 Rev=00.00
    C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
    
    T:  Bus=02 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#=  5 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=12d1 ProdID=1446 Rev=00.00
    S:  Manufacturer=HUAWEI Technology
    S:  Product=HUAWEI Mobile
    C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    I:  If#= 1 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
    
    T:  Bus=02 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#=  3 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
    P:  Vendor=090c ProdID=37b3 Rev=08.16
    S:  Manufacturer=Image Processor
    S:  Product=Lenovo EasyCamera
    S:  SerialNumber=Integrated Camera
    C:  #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
    I:  If#= 1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo
    I noticed it's not recognised properly and I think it's not recognised as a modem but a pen drive? Someone mentioned this is a common issue.

  6. #6
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,963
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: Problems with Huawei E1750 - discovery issues on system load

    Setup an udev-rule:

    Code:
    gksudo gedit /lib/udev/rules.d/61-option-modem-modeswitch.rules
    Insert:

    Code:
    ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1446", RUN+="modem-modeswitch -v 0x%s{idVendor} -p 0x%s{idProduct} -t option-zerocd"
    save, close, and:

    Code:
    sudo service udev reload

  7. #7
    Join Date
    Oct 2011
    Beans
    23

    Re: Problems with Huawei E1750 - discovery issues on system load

    Done. I'll see next time I turn on my laptop if it worked. By the way, could you explain what I just did? I'd like to know what caused the problem.

    Uhm, is idProduct=1446 correct? 'lsusb' shows it this way when everything is working:
    ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem
    Last edited by tommo1982; October 21st, 2011 at 06:13 PM.

  8. #8
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,963
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: Problems with Huawei E1750 - discovery issues on system load

    1446 is for the storage device. The udev-rule throws out the storage device automatically, after that it should show 1001 and it should work.

  9. #9
    Join Date
    Oct 2011
    Beans
    23

    Re: Problems with Huawei E1750 - discovery issues on system load

    Yes, everything is working now. I turned on the laptop, the system loaded, with modem being properly recognised and I just had to enable modem connection and it connected . Thank you for your help!

  10. #10
    Join Date
    Oct 2011
    Beans
    23

    Re: Problems with Huawei E1750 - discovery issues on system load

    I was too fast. It turned out it wasn't working as it should be. It was because the command modem-modeswitch doesn't exist in 11.10. Instead it's name is 'usb_modeswitch'.

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