Ethernet connection lost after few minutes since starting
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
network-manager (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
This is the same bug I notified at Bug #1770848 but with a more precise selection of (what I think it is) the package affected and a better description.
I made a few days ago a fresh install of the Kubuntu 18.04 LTS and it is most everything Ok, but -I think that- the network-manager has a problem.
In the last LTS version, Kubuntu 16.04, nor in any Linux version if I remember well, I never lost connection through Ethernet (the only Internet connection with our desktop PC), but the Bionic Beaver loses the connection every now and then, perhaps within few minutes or hours, but several times per day.
When the connection is lost, I note that it disappears any info even mention to any network into the network window and the network manager icon becomes red color.
Not matter if I unplug and then plug the ethernet cable again, the ethernet connection is not longer detected and only restarting the PC makes the connection to work again.
Incidentally, I also have noticed with this version of Kubuntu 18.04 that in my laptop there is also now a similar problem with the scanner: If I plug it in some USB port of the laptop once Kubuntu 18.04 is already running, it's not detected by Xsane. I have to plug it in before than pressing the power button or at the time of starting the OS, for the scanner to be detected by the scanning program (and then only works with Xsane, not if I use Simple Scan or Skanlite, even when it works under Xsane), as I said in the Bug #1771525 and, evenly, if I unplug the scanner cable from the USB port it is not detected anymore when plugging it again, and only restarting the laptop makes it to be detected.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.6-2ubuntu1
ProcVersionSign
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: KDE
Date: Thu May 17 08:24:23 2018
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2018-05-11 (5 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
IpRoute:
default via 192.168.1.1 dev enp0s7 proto static metric 100
169.254.0.0/16 dev enp0s7 scope link metric 1000
192.168.1.0/24 dev enp0s7 proto kernel scope link src 192.168.1.3 metric 100
IwConfig:
enp0s7 no wireless extensions.
lo no wireless extensions.
NetworkManager.
[main]
NetworkingEnab
WirelessEnable
WWANEnabled=true
PciNetwork:
RfKill:
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-
Conexión cableada 1 1cc37db8-
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
enp0s7 ethernet connected /org/freedeskto
lo loopback unmanaged /org/freedeskto
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
running 1.10.6 connected started full enabled enabled enabled enabled enabled
---
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2018-05-11 (6 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
IpRoute:
default via 192.168.1.1 dev enp0s7 proto static metric 100
169.254.0.0/16 dev enp0s7 scope link metric 1000
192.168.1.0/24 dev enp0s7 proto kernel scope link src 192.168.1.3 metric 100
IwConfig:
enp0s7 no wireless extensions.
lo no wireless extensions.
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 04fc:0005 Sunplus Technology Co., Ltd USB OpticalWheel Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
NetworkManager.
[main]
NetworkingEnab
WirelessEnable
WWANEnabled=true
Package: network-manager 1.10.6-2ubuntu1
PackageArchitec
PciNetwork:
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.173
RfKill:
Tags: bionic
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/17/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.50
dmi.board.name: N68-S
dmi.board.vendor: ASRock
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.
dmi.sys.vendor: To Be Filled By O.E.M.
nmcli-con:
NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-
Conexión cableada 1 1cc37db8-
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
enp0s7 ethernet connected /org/freedeskto
lo loopback unmanaged /org/freedeskto
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
running 1.10.6 connected started full enabled enabled enabled enabled enabled
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1771749
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.