[Pkg-utopia-maintainers] Bug#842234: modemmanager: Thinkpad X1 2015 crashes on sleep

[Brian May]

Package: modemmanager
Version: 1.6.2-1
Severity: important

If I try to sleep with the modem active, it sometimes causes the
computer to enter a state where it will not sleep anymore, and it will
not talk to the LTE modem anymore.

If I downgrade to modemmanager 1.4.x it works perfectly.

If I remember to disconnect the modem before putting the computer to
sleep it also works perfectly.

Any ideas?

I am using modemmanager with networkmanager. I can provide debugging
information, however so far not seen anything remotely useful.

I do see the following, this might be after the failure occured however:

Oct 27 18:59:38 prune ModemManager[1910]: <warn>  Modem couldn't be initialized: couldn't load current capabilities: Transaction timed out
Oct 27 18:59:38 prune NetworkManager[1932]: <info>  [1477555178.5710] manager: (cdc-wdm0): new Broadband device (/org/freedesktop/NetworkMan
ager/Devices/49)
Oct 27 18:59:38 prune NetworkManager[1932]: <info>  [1477555178.5715] device (cdc-wdm0): state change: unmanaged -> unavailable (reason 'man
aged') [10 20 2]
Oct 27 18:59:38 prune NetworkManager[1932]: <info>  [1477555178.5717] device (cdc-wdm0): modem state 'unknown'
Oct 27 18:59:38 prune NetworkManager[1932]: <info>  [1477555178.5718] modem-broadband[cdc-wdm0]: failed to retrieve SIM object: No SIM objec
t available
Oct 27 18:59:38 prune gnome-shell[3604]: nma_mobile_providers_database_lookup_cdma_sid: assertion 'sid > 0' failed
Oct 27 18:59:38 prune gnome-shell[3367]: nma_mobile_providers_database_lookup_cdma_sid: assertion 'sid > 0' failed

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (100, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages modemmanager depends on:
ii  init-system-helpers    1.45
ii  libc6                  2.24-3
ii  libglib2.0-0           2.50.0-2
ii  libgudev-1.0-0         230-3
ii  libmbim-glib4          1.14.0-1
ii  libmbim-proxy          1.14.0-1
ii  libmm-glib0            1.6.2-1
ii  libpolkit-gobject-1-0  0.105-16
ii  libqmi-glib5           1.16.0-1
ii  libqmi-proxy           1.16.0-1

Versions of packages modemmanager recommends:
ii  usb-modeswitch  2.4.0+repack0-1

modemmanager suggests no packages.

-- no debconf information