Ubuntu
network-manager package

Link not detected when cable is connected

Bug #966238 reported by Jean-Baptiste Lallement on 2012-03-27

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	network-manager (Ubuntu)	Expired	Medium	Unassigned

Bug Description

Precise Desktop 20120327.1

TEST CASE:
1. Install Precise, and power the system off
2. unplug the cable
3. Boot and login
4. Plug the cable

EXPECTED RESULT
Cable is detected and link comes up

ACTUAL RESULT
Cable is not detected. Disable/Enable networking works around this issue

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.3.995+git201203152001.04b2a74-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
ApportVersion: 1.95-0ubuntu1
Architecture: i386
Date: Tue Mar 27 15:52:55 2012
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120327.1)
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
TERM=xterm
LANG=fr_FR.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)

Tags:

Revision history for this message

Jean-Baptiste Lallement (jibel) wrote on 2012-03-27:

CRDA.txt Edit (257 bytes, text/plain; charset="utf-8")
Dependencies.txt Edit (2.6 KiB, text/plain; charset="utf-8")
IpAddr.txt Edit (681 bytes, text/plain; charset="utf-8")
IpRoute.txt Edit (178 bytes, text/plain; charset="utf-8")
IwConfig.txt Edit (251 bytes, text/plain; charset="utf-8")
NetDevice.eth0.txt Edit (478 bytes, text/plain; charset="utf-8")
NetDevice.lo.txt Edit (205 bytes, text/plain; charset="utf-8")
NetDevice.wlan0.txt Edit (486 bytes, text/plain; charset="utf-8")
NetworkManager.conf.txt Edit (69 bytes, text/plain; charset="utf-8")
PciNetwork.txt Edit (1.2 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (240 bytes, text/plain; charset="utf-8")
WifiSyslog.txt Edit (120.8 KiB, text/plain; charset="utf-8")
nmcli-con.txt Edit (596 bytes, text/plain; charset="utf-8")
nmcli-dev.txt Edit (258 bytes, text/plain; charset="utf-8")
nmcli-nm.txt Edit (218 bytes, text/plain; charset="utf-8")

Revision history for this message

Ubuntu QA Website (ubuntuqa) wrote on 2012-03-27:

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/966238

tags:

added: iso-testing

Revision history for this message

Mathieu Trudel-Lapierre (cyphermox) wrote on 2012-04-03:

What brand of laptop is this on? I strongly believe this is more likely to be an issue with the wired driver atl1c than with NetworkManager, I'd like to test this in lab.

What ought to be verified is to disable network-manager from starting on boot in this case, and see if the wired device is usable. If not, see if doing an rmmod of the atl1c driver, followed by a modprobe of it will put the device back into a working state. If that's the case, then this is an issue at the kernel level with the order the modules are loaded.

Changed in network-manager (Ubuntu):
status:	New → Incomplete
importance:	Undecided → Medium

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-06-03:

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]

Changed in network-manager (Ubuntu):
status:	Incomplete → Expired

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Ubuntunetwork-manager package

Link not detected when cable is connected

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Ubuntu
network-manager package