Snapdragon X55 (Thinkpad X1 Nano w/5G Modem)

Oskar Stenman oskar at cetex.se
Sat May 22 13:10:23 UTC 2021


I can confirm this works.

After installing this it seems to be connect to internet before i even get
desktop up from cold-start.
First log in journalctl after boot: 10:23:29, Modemmanager reports
connected 13 seconds later:
May 22 10:23:42 oskar-ThinkPad-X1-Nano-Gen-1 ModemManager[1370]: <info>
[modem0] simple connect state (8/8): all done
Those 13 seconds includes the time for me me to enter the password for the
encrypted root.

After suspend it seems to takes about 3-5 seconds until internet is
reconnected, although i've only tested suspend for short periods.

I'm very very satisfied with these times. On my old x270 it usually took
minutes..

Although, the connection fails after some time, then it can't reconnect and
requires some "fiddling" (this is nothing new though), Not sure what's
going on but i'll try to reproduce it.
sometimes "nmcli conn down wwan" / "nmcli conn up wwan" solves it, other
times "nmcli radio wwan off" / "nmcli radio wwan on" seems to be needed to
resolve the connection issue, maybe it's two separate problems.

/Oskar

On Fri, 21 May 2021 at 21:34, Aleksander Morgado <aleksander at aleksander.es>
wrote:

> Hey Oskar,
>
> > I've tested it. ModemManager doesn't automatically activate it,
>
> Ok, please retry with the latest
>
> https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/merge_requests/534
>
> It works for me on the laptop I received yesterday ;)
>
> $ uname -a
> Linux hestia 5.13.0-rc2-2-mainline #1 SMP PREEMPT Fri, 21 May 2021
> 10:26:53 +0000 x86_64 GNU/Linux
>
> $ mmcli -m 0
>   -----------------------------------
>   General  |                    path:
> /org/freedesktop/ModemManager1/Modem/0
>            |               device id:
> 3a875f57ba87d7120a073a363b3e04265a7113d2
>   -----------------------------------
>   Hardware |            manufacturer: foxconn
>            |                   model: Qualcomm Snapdragon X55 5G
>            |       firmware revision: T99W175.F0.0.0.5.7.TF.007
>            |                          076
>            |          carrier config: Telefonica
>            | carrier config revision: 0A000C07
>            |            h/w revision: Qualcomm Snapdragon X55 5G
>            |               supported: gsm-umts, lte, 5gnr
>            |                 current: gsm-umts, lte, 5gnr
>   -----------------------------------
>   System   |                  device:
> /sys/devices/pci0000:00/0000:00:1c.0/0000:08:00.0
>            |                 drivers: mhi_net, mhi-pci-generic
>            |                  plugin: foxconn
>            |            primary port: wwan0p2MBIM
>            |                   ports: mhi_mbim0 (net), wwan0p2MBIM (mbim)
>   -----------------------------------
>   Status   |          unlock retries: sim-pin2 (3)
>            |                   state: registered
>            |             power state: on
>            |             access tech: umts
>            |          signal quality: 16% (recent)
>   -----------------------------------
>   3GPP     |           enabled locks: fixed-dialing
>            |             operator id: 21407
>            |           operator name: Movistar
>            |            registration: home
>
>
>
>
> --
> Aleksander
> https://aleksander.es
>
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