** Attachment added: "dmesg without Internet connection" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1771749/+attachment/5152923/+files/dmesg%20without%20internet%20connection.txt
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1771749 Title: Ethernet connection lost after few minutes since starting Status in linux package in Ubuntu: Confirmed Status in network-manager package in Ubuntu: Confirmed 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 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 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.state: [main] NetworkingEnabled=true WirelessEnabled=true 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-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH SLAVE Conexión cableada 1 1cc37db8-0db8-3887-acf2-59fbbcd0cb1c ethernet 1526538083 jue 17 may 2018 08:21:23 CEST yes 4294967196 no /org/freedesktop/NetworkManager/Settings/1 yes enp0s7 activated /org/freedesktop/NetworkManager/ActiveConnection/1 -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH enp0s7 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Conexión cableada 1 1cc37db8-0db8-3887-acf2-59fbbcd0cb1c /org/freedesktop/NetworkManager/ActiveConnection/1 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- 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/controlC0: nosotros 1116 F.... pulseaudio /dev/snd/controlC1: nosotros 1116 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=bb1531db-e7c0-48eb-a5b7-5afe3df47ba3 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.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true Package: network-manager 1.10.6-2ubuntu1 PackageArchitecture: amd64 PciNetwork: ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=d1d6ad93-b21c-43cd-8410-782414a5f935 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A 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.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd07/17/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnN68-S:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH SLAVE Conexión cableada 1 1cc37db8-0db8-3887-acf2-59fbbcd0cb1c ethernet 1526562681 jue 17 may 2018 15:11:21 CEST yes 4294967196 no /org/freedesktop/NetworkManager/Settings/1 yes enp0s7 activated /org/freedesktop/NetworkManager/ActiveConnection/1 -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH enp0s7 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Conexión cableada 1 1cc37db8-0db8-3887-acf2-59fbbcd0cb1c /org/freedesktop/NetworkManager/ActiveConnection/1 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1771749/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp