Problem with mm-1.0.0 and Dell 5560

[Marek Kaluba]

On Wednesday 18 December 2013 13:42:11 Bjørn Mork wrote:

> > Still after modprobing cdc_ncm prefer_mbim=N (and restarting NM,
> > relogging, etc) MM coudn't find the valid data port (the same error).
> 
> Please try to include more actual results.
> 
> Which drivers are attached to the modem after this change? "mmcli -m 0"
> will show this for example.  Did you get any new messages in the logs
> etc?

With mbim enabled:
mmcli -m 2

/org/freedesktop/ModemManager1/Modem/2 (device id 
'0b23d608ea84690b65aa61baa5e39643627fe795')
  -------------------------
  Hardware |   manufacturer: 'Ericsson MBM'
           |          model: 'MBIM [413C:818E]'
           |       revision: 'CXP 901 8700/1 - R3C18'
           |      supported: 'gsm-umts'
           |        current: 'gsm-umts'
           |   equipment id: '358994041358732'
  -------------------------
  System   |         device: 
'/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6'
           |        drivers: 'cdc_acm, cdc_mbim, cdc_wdm'
           |         plugin: 'Ericsson MBM'
           |   primary port: 'cdc-wdm1'
           |          ports: 'ttyACM0 (at), wwp0s29u1u6i6 (net), ttyACM1 (at), 
ttyACM2 (at), cdc-wdm1 (mbim)'
  -------------------------
  Numbers  |           own : 'unknown'
  -------------------------
  Status   |           lock: 'none'
           | unlock retries: 'unknown (4294967295)'
           |          state: 'disabled'
           |    power state: 'low'
           |    access tech: 'unknown'
           | signal quality: '0' (cached)
  -------------------------
  Modes    |      supported: 'allowed: 2g, 3g; preferred: none'
           |        current: 'allowed: 2g, 3g; preferred: none'
  -------------------------
  Bands    |      supported: 'unknown'
           |        current: 'unknown'
  -------------------------
  IP       |      supported: 'ipv4, ipv6, ipv4v6'
  -------------------------
  3GPP     |           imei: '358994041358732'
           |  enabled locks: 'none'
           |    operator id: 'unknown'
           |  operator name: 'unknown'
           |   registration: 'unknown'
  -------------------------
  SIM      |           path: '/org/freedesktop/ModemManager1/SIM/2'

> Did you follow the given procedure, or did you just do what you say?
> That won't do anything at all without unloading cdc_mbim and cdc_ncm
> first.  Try to describe all the steps you have taken, not just some of
> them.
> 
> I'm terrible at guessing, so don't make me :-)

I'm sorry, I wrote it so sloppy.

Here is what I did (recall that here mbim is NOT compile-time enabled):

echo N >/sys/module/cdc_ncm/parameters/prefer_mbim

rmmod cdc_mbim
rmmod cdc_ncm

modprobe cdc_ncm prefer_mbim=N

I am pretty sure that logs shown me the same error (couldn't find valid data 
port), BUT I will test it once again tomorrow in the evening (including all 
possible changes in logs)

Cheers,
Marek