Comment 5 for bug 1971435

I can confirm the bug as well. Modem: HUAWEI ME906s (Lenovo Thinkpad X260)

jacopo@thinklinux:~$ modem-manager-gui
Connection manager: Network Manager >= 0.9.0
Modem manager: Modem Manager >= 0.7.0

** (modem-manager-gui:26260): WARNING **: 12:03:33.735: Network Manager >= 0.9.0: File o directory non esistente
Segmentation fault at address: 0x20
Stack trace:
1. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_bit_lock+0x50) [0x7fb7eedd8540]
2. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_bit_lock+0x50) [0x7fb7eedd8540]
3. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_variant_n_children+0x1d) [0x7fb7eee5237d]
4. /usr/lib/x86_64-linux-gnu/modem-manager-gui/modules/libmodcm_nm09.so(+0x3bc0) [0x7fb7ea6b7bc0]
5. modem-manager-gui(mmguicore_connections_enum+0x6d) [0x5612a71d6d4d]
6. modem-manager-gui(+0x4a520) [0x5612a71f7520]
7. modem-manager-gui(mmguicore_devices_open+0x1c0) [0x5612a71dbf90]
8. modem-manager-gui(+0x414fe) [0x5612a71ee4fe]
9. modem-manager-gui(+0x4a7a2) [0x5612a71f77a2]
jacopo@thinklinux:~$

Launching with modem-manager-gui -c pppd245 does work, but it cannot manage the Internet connection, only SMS.