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freifunk_connewitz
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Joined: 08 Feb 2006
Posts: 183

PostPosted: Mon Aug 25, 2014 4:20 pm    Post subject: usb mobile broadband modem connectivity lost after update Reply with quote

hi,

on my laptop, I used the builtin 3G-mobile broadband modem every once in a while. it has worked quite well, but now, after not having used it for about 2 months (and after the usual weekly updates), NetworkManager just does not find any mobile broadband modem any more. also if I try to configure a new connection, the wizard's page where you choose the device has only an empty device list to offer.

somehow the modem init process stops after the Qualcomm Modem Converter gets attached to /dev/ttyUSB0 - 2. but no network device wwan0 gets activated.

here's my setup:
machine: Fujitsu Lifebook S 761
modem: Sierra Wireless MC 8035 (ID: 1199:9011)
kernel: 3.14.14-gentoo
NetworkManager: 0.9.8.10-r1
ModemManager: 1.2.0-r1

Code:

# lsmod
iptable_nat             2486  0
nf_nat_ipv4             3038  1 iptable_nat
nf_nat                  9935  2 nf_nat_ipv4,iptable_nat
ext4                  395734  1
jbd2                   69582  1 ext4
qcserial                6756  0
qmi_wwan               13435  0
cdc_wdm                 8897  1 qmi_wwan
usb_wwan                5423  1 qcserial
usbnet                 17418  1 qmi_wwan
usbserial              19565  2 qcserial,usb_wwan
mii                     3347  1 usbnet
uvcvideo               61509  0
videobuf2_vmalloc       2496  1 uvcvideo
videobuf2_memops        1511  1 videobuf2_vmalloc
videobuf2_core         22899  1 uvcvideo
videodev              103395  2 uvcvideo,videobuf2_core
media                  10139  2 uvcvideo,videodev
vboxnetflt             13314  0
vboxnetadp             17206  0
vboxdrv               289295  2 vboxnetadp,vboxnetflt
snd_hda_codec_hdmi     30915  1
snd_hda_codec_realtek    41292  1
snd_hda_codec_generic    41273  1 snd_hda_codec_realtek
x86_pkg_temp_thermal     4390  0
coretemp                5534  0
kvm_intel             120475  0
kvm                   316606  1 kvm_intel
iwldvm                102291  0
crc32_pclmul            2627  0
crc32c_intel           13770  0
snd_hda_intel          29705  2
sdhci_pci               9933  0
ghash_clmulni_intel     3483  0
iwlwifi                65383  1 iwldvm
sdhci                  20488  1 sdhci_pci
snd_hda_codec          80250  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
i2c_i801                8536  0
mmc_core               74234  1 sdhci
snd_hwdep               5197  1 snd_hda_codec
ehci_pci                3176  0
snd_pcm                66456  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
e1000e                136355  0
ehci_hcd               35189  1 ehci_pci
snd_timer              15576  1 snd_pcm
snd                    50067  12 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
ptp                     6748  1 e1000e
pps_core                5728  1 ptp


if I try the modules sierra or sierra_net, Networkmanager can't even connect the cable connection anymore. but those modules weren't even present when the 3G connection was still working. IIRC it only needed qcserial, usbserial and usb_wwan.

I already tried to compile the QMI, USBNET and CDC modules which are already present in the loaded modules list above. I even tried to manually bring up the device wwan0 (no error message when doing so, BTW). but still, there is no mobile broadband device available to NetworkManager.

can anybody help me by pushing me in the right way to think and try? thanks a lot.
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eccerr0r
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Joined: 01 Jul 2004
Posts: 7188
Location: almost Mile High in the USA

PostPosted: Tue Aug 26, 2014 1:08 am    Post subject: Reply with quote

I didn't see your ppp module, did you build it in the kernel?
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freifunk_connewitz
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Joined: 08 Feb 2006
Posts: 183

PostPosted: Tue Aug 26, 2014 9:52 am    Post subject: Reply with quote

eccerr0r,
thanks for the reply.
no, ppp is built as a module here:
Code:
# cat /usr/src/linux/.config|grep PPP
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_HDLC_PPP=m
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freifunk_connewitz
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Joined: 08 Feb 2006
Posts: 183

PostPosted: Thu Aug 28, 2014 9:56 am    Post subject: Reply with quote

hi again,
an update so maybe my problem is better understandable:
the modem gets started during boot and the /dev/ttyUSB0-2 devices get initialized. when I
Code:
cat /dev/ttyUSB1

and
Code:
echo "ATi^M" >/dev/ttyUSB1
in another terminal, the modem responds in the first terminal:
Quote:
# cat /dev/ttyUSB1
ATi


Manufacturer: Sierra Wireless Inc

Model: MC8305

Revision: D3200-STSUGN-1575 1 [Nov 22 2010 09:00:00]

SVN: 02

IMEI: 355096040726068

+GCAP: +CGSM,+DS,+ES



OK

ATi


Manufacturer: Sierra Wireless Inc

Model: MC8305

Revision: D3200-STSUGN-1575 1 [Nov 22 2010 09:00:00]

SVN: 02

IMEI: 355096040726068

+GCAP: +CGSM,+DS,+ES



OK

aATi


Manufacturer: Sierra Wireless Inc

Model: MC8305

Revision: D3200-STSUGN-1575 1 [Nov 22 2010 09:00:00]

SVN: 02

IMEI: 355096040726068

+GCAP: +CGSM,+DS,+ES



OK


BUT there is still no wwan-device showing up in NetworkManager or after
Code:
rfkill list
.

What am I missing? Especially since my setup has been working until recently.
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freifunk_connewitz
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Joined: 08 Feb 2006
Posts: 183

PostPosted: Tue Sep 02, 2014 4:22 pm    Post subject: Reply with quote

Hi again,

how embarassing that I didn't think of that, but the problem is much more on top of all layers than I thought:

As described here:

https://forums.gentoo.org/viewtopic-p-7611012.html#7611012,

with the last update (in my case to 0.9.8.10-r1) NetworkManager did not start Modemmanager any more.

Quote:
# emerge --info networkmanager
Portage 2.2.8-r1 (default/linux/amd64/13.0/desktop/kde, gcc-4.7.3, glibc-2.19-r1, 3.14.14-gentoo x86_64)
=================================================================
System Settings
=================================================================
System uname: Linux-3.14.14-gentoo-x86_64-Intel-R-_Core-TM-_i7-2620M_CPU_@_2.70GHz-with-gentoo-2.2
KiB Mem: 3936088 total, 1596980 free
KiB Swap: 0 total, 0 free
Timestamp of tree: Tue, 02 Sep 2014 15:00:01 +0000
ld GNU ld (GNU Binutils) 2.23.2
distcc 3.1 x86_64-pc-linux-gnu [disabled]
app-shells/bash: 4.2_p45
dev-java/java-config: 2.2.0
dev-lang/python: 2.7.7, 3.3.5-r1
dev-util/cmake: 2.8.12.2-r1
dev-util/pkgconfig: 0.28-r1
sys-apps/baselayout: 2.2
sys-apps/openrc: 0.12.4
sys-apps/sandbox: 2.6-r1
sys-devel/autoconf: 2.13, 2.69
sys-devel/automake: 1.11.6, 1.12.6, 1.13.4
sys-devel/binutils: 2.23.2
sys-devel/gcc: 4.6.3, 4.7.3-r1
sys-devel/gcc-config: 1.7.3
sys-devel/libtool: 2.4.2-r1
sys-devel/make: 3.82-r4
sys-kernel/linux-headers: 3.13 (virtual/os-headers)
sys-libs/glibc: 2.19-r1
Repositories: gentoo
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O2 -pipe -march=native"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--ask-enter-invalid"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
LANG="de_DE.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/portagetmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
USE="X a52 aac acl acpi alsa amd64 berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cups cxx dbus declarative dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac foomaticdb fortran ftp gdbm gif gnutls gpm gstreamer gtk iconv ipod ipv6 jabber jpeg kde kipi latex lcms ldap libnotify lm_sensors mad mmx mng modules mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp pam pango pcre pdf phonon plasma png policykit ppds qt3support qt4 readline sdl semantic-desktop session spell sse sse2 ssl startup-notification svg tcpd tiff truetype udev udisks unicode upower usb vorbis win32codecs wxwidgets x264 xcb xcomposite xinerama xml xscreensaver xv xvid zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="intel" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
Package Settings
=================================================================

net-misc/networkmanager-0.9.8.10-r1 was built with the following:
USE="bluetooth consolekit dhcpcd gnutls introspection modemmanager ppp wext wifi -avahi -connection-sharing -dhclient -nss -resolvconf -systemd -test -vala" ABI_X86="64"
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