I'm running -4 with asac's network-manager/trunk PPA and I am able to connect via the modem.
(re it disappearing after suspend/resume, check the value of /sys/devices/platform/thinkpad_acpi/wwan_enable, I've noticed the thinkpad_acpi driver seems to unconditionally disable the device a lot)
I'm running -4 with asac's network- manager/ trunk PPA and I am able to connect via the modem.
(re it disappearing after suspend/resume, check the value of /sys/devices/ platform/ thinkpad_ acpi/wwan_ enable, I've noticed the thinkpad_acpi driver seems to unconditionally disable the device a lot)