Running on battery ethernet does not reconnect after connection was dropped once

[Rüdiger Kupper]

Raring, on a Thinkpad T61, with e1000e network driver.
After resume form suspend, eth0 is down, but network manager shows "network connected". Reconnecting via the indicator menu does not work.
When I type "sudo service networking restart" in a terminal, my whole session breaks: unity/compiz disappears, leaving the desktop unusable. Trying to use nmcli from a command line reports that dbus session cannot be found.
I need to reboot to recover from this state.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: network-manager 0.9.8.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Sat May 4 16:26:24 2013
EcryptfsInUse: Yes
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2012-12-20 (134 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
IpRoute:
 default via 192.168.1.1 dev eth0 proto static
 169.254.0.0/16 dev eth0 scope link metric 1000
 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.129 metric 1
MarkForUpload: True
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to raring on 2013-04-25 (8 days ago)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 wlan0 802-11-wireless unavailable /org/freedesktop/NetworkManager/Devices/1
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.0 connected enabled disabled disabled enabled disabled

[Rüdiger Kupper (ruediger.kupper)]

Correction: No need to suspend, removing the cable and re-plugging causes the same problem.
After the cable was removed once, network manager always reports "Ethernet Networks: disconnected".

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Rüdiger Kupper (ruediger.kupper)]

Update: The problem is related to power management: It only occurs, when the laptop is running on battery. As soon as it's connected to AC, ethernet immediately reconnects.

[Rüdiger Kupper (ruediger.kupper)]

Same problem on a Thinkpad X230, with e1000e network driver.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Rüdiger Kupper (ruediger.kupper)]

This bug ist not present in vivid.