Hi
Im running a ublox SARA modem in an embedded system on ubuntu.
It is connecting fine on ubuntu 20.04, but remains in "registered" state
when setup in ubuntu 22.04.
It seems that NM doesn't run pppd for some reason, or is it MM issue?
root@ubuntu:~# mmcli -m 0
--------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/0
| device id: d4174b3552de7d45f5b0268aec1350664f7273c6
--------------------------------
Hardware | manufacturer: u-blox
| model: SARA-R510M8S
| firmware revision: 03.15
| supported: gsm-umts
| current: gsm-umts
| equipment id: 352709570223149
--------------------------------
System | device:
/sys/devices/platform/soc@0/30800000.bus/30860000.serial
<mailto:/sys/devices/platform/soc@0/30800000.bus/30860000.serial>
| drivers: imx-uart
| plugin: generic
| primary port: ttymxc0
| ports: ttymxc0 (at)
--------------------------------
Status | unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3),
sim-puk2 (10)
| state: registered
| power state: on
| access tech: lte
| signal quality: 41% (recent)
--------------------------------
Modes | supported: allowed: any; preferred: none
| current: allowed: any; preferred: none
--------------------------------
IP | supported: ipv4, ipv6, ipv4v6
--------------------------------
3GPP | imei: 352709570223149
| operator name: Partner ISR
| registration: home-sms-only
| packet service state: detached
--------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/0
NM connection file:
id=ttymxc0
uuid=c0a7c307-2657-4cf1-8913-b5a826594338
type=gsm
[gsm]
#apn=uinternet
auto-config=TRUE
[ppp]
baud=921600
crtscts=true
lcp-echo-failure=5
lcp-echo-interval=30
[ipv4]
dns-search=
method=auto
[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=ignore
