Public bug reported:
Running 3.8.0-19.30 or 3.8.0-20.31 (and likely some earlier versions), no
carrier is detected by the OS on eth0 (e1000e driver) on my Latitude E6420. 'ip
link' shows:
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state
DOWN mode DEFAULT qlen 1000
link/ether 5c:26:0a:6c:7a:bd brd ff:ff:ff:ff:ff:ff
The physical lights on the port are green (left) and blinking amber (right).
If I dock the system and use the ethernet port on the dock, eth0 is
fully functional.
This is not a hardware issue as the on-board port functions normally again if I
boot into 3.5.0-27.46.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-20-generic 3.8.0-20.31
ProcVersionSignature: Ubuntu 3.8.0-20.31-generic 3.8.11
Uname: Linux 3.8.0-20-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jared 2293 F.... pulseaudio
Date: Fri May 10 14:02:23 2013
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-precise-amd64-20120703-2
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=286e265d-6e47-441b-8411-392fc25d777d
InstallationDate: Installed on 2013-03-21 (50 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary
20120703-15:08
MachineType: Dell Inc. Latitude E6420
MarkForUpload: True
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-20-generic
root=UUID=89dc4291-1a9d-4210-a365-1fda39b02c58 ro splash i915.i915_enable_rc6=7
i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-20-generic N/A
linux-backports-modules-3.8.0-20-generic N/A
linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-05-02 (8 days ago)
dmi.bios.date: 01/01/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A16
dmi.board.name: 0K0DNP
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA16:bd01/01/2013:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn0K0DNP:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6420
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug package-from-proposed raring
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https://bugs.launchpad.net/bugs/1178792
Title:
no carrier with built-in ethernet port (dock works
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