GPS problem with mmcli

Dan Williams dcbw at
Fri Feb 2 15:30:11 UTC 2018

On Thu, 2018-02-01 at 14:39 +0100, Mbortolazzo wrote:
> I have a problem with mmcli to control GPS nmea on two different
> Modem: Sierra EM7455 and Huawei ME906S.

GPS functionality is highly dependent on the modem model and firmware
and what mode the modem is in (eg MBIM, AT+ether, QMI, etc).

What is the output of "usb-devices" for each of these modems?


> "mmcli -m 0 --location-enable-gps-nmea" return error: couldn't setup
> location gathering:
> 'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Unsupported:
> Cannot enable unsupported location sources: 'gps-nmea'.
> The command "mmcli -m 0 --location-status" return only "3gpp-lac-ci"
> location capabilities, so I can't read gps coordinate with mmcli
> command.
> Other mmcli commands works (enable modem,connection via LTE), only
> with AT commands I can get gps position.
> What can I do? Is something related to driver of the modem?
> Best Regards,
> Marco Bortolazzo
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