huawei E355 usb router not working properly in xubuntu 14.04
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
modemmanager (Arch Linux) |
New
|
Undecided
|
Unassigned | ||
modemmanager (Debian) |
New
|
Undecided
|
Unassigned | ||
modemmanager (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
huawei E355 is a USB router (1x Ethernet-over-USB, 5 x WLAN) [1].
with ubuntu 12.04.3 LTS (3.8 series of kernel), it was recognised and worked properly by default. a connection was created under the 'wired connection' option just by plugging the device into the machine. however, since then it never worked properly. in (x)ubuntu 13.10, an alternative worked [2,3]; which unfortunately stopped working in xubuntu 14.04.
expected behaviour: one connection under wired connection and one under wifi connection should be available. ubuntu 12.04.3 LTS, ubuntu 13.04 performed in expected manner.
present behaviour: only wifi hotspot generated by the router could be used. the ethernet over usb function is totally unavailable in (x)ubuntu 14.04.
possible reason: cdc_ncm kernel was changed beyond 3.8 series but the changes was not considered in the modem manager. in [2,3], the provided solution was based on deactivating the changes made in the cdc_ncm beyond 3.8 kernel series.
[1] -> http://
[2] -> http://
[3] -> http://
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: modemmanager 1.0.0-2ubuntu1
ProcVersionSign
Uname: Linux 3.13.0-19-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Apr 17 19:44:36 2014
InstallationDate: Installed on 2014-04-16 (1 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
SourcePackage: modemmanager
UpgradeStatus: No upgrade log present (probably fresh install)
also affect latest debian and mint. tested with manjaro linux, february package; and its present there. so, arch should also be affected.
probably this commit (http:// o.cs.uvic. ca:20810/ perl/cid. pl?cid= 1f84eab4ad73bcb 7d779cba65291fe 62909e373f) is responsible.
net: cdc_ncm: tag Huawei devices (e.g. E5331) with FLAG_WWAN
Tag all Huawei NCM devices as WWAN modems, as we don't know of any which
are not. This is necessary for userspace clients to know that the device
requires further setup on e.g. an AT-capable serial ports before
connectivity is available.
Signed-off-by: Bjørn Mork <email address hidden>
Signed-off-by: David S. Miller <email address hidden>
It was merged by Linus on 2013-03-05 18:42:29-08 at commit 9da060d0ed571bb ff434c4a1ef3e48 db99a37ee0.