apport information ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1754759/+attachment/5078540/+files/CurrentDmesg.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/1754759 Title: LAN connection keeps connecting and disconnecting in an infinite loop Status in linux package in Ubuntu: Confirmed Status in network-manager package in Ubuntu: New Bug description: With Xubuntu 17.10 the following problem occurs on a Lenovo X230 Laptop: - Boot from live-ISO - Click on network icon in title bar and edit LAN-connection - Change MTU from Auto to 1492 - Connect LAN cable => LAN network keeps connecting and disconnecting in an infinite loop (No wireless network is configured.) The error did not occur on Xubuntu 16.04. The same situation occurs with Xubuntu installed on the SSD. I took the ISO for this bug report, in order to exclude wrong settings on the installed system. This is my first bug report - I hope I did not do too much wrong. If necessary, I can provide more information. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: network-manager 1.8.4-1ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13 Uname: Linux 4.13.0-21-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CasperVersion: 1.387 CurrentDesktop: XFCE Date: Fri Mar 9 20:26:21 2018 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IpRoute: default via 10.110.120.1 dev enp0s25 proto static metric 100 10.110.120.0/24 dev enp0s25 proto kernel scope link src 10.110.120.57 metric 100 169.254.0.0/16 dev enp0s25 scope link metric 1000 LiveMediaBuild: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash 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 Wired connection 1 db135360-f229-3472-bd3a-eb8d6bc8b601 802-3-ethernet 1520627169 Fr 09 Mär 2018 20:26:09 UTC yes 4294966297 no /org/freedesktop/NetworkManager/Settings/1 yes enp0s25 activated /org/freedesktop/NetworkManager/ActiveConnection/32 -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH enp0s25 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 db135360-f229-3472-bd3a-eb8d6bc8b601 /org/freedesktop/NetworkManager/ActiveConnection/32 wlp3s0 wifi disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.8.4 connected started full enabled enabled enabled enabled enabled --- ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: xubuntu 3822 F.... pulseaudio CasperVersion: 1.387 DistroRelease: Ubuntu 17.10 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IpRoute: default via 10.110.120.1 dev enp0s25 proto static metric 100 10.110.120.0/24 dev enp0s25 proto kernel scope link src 10.110.120.57 metric 100 169.254.0.0/16 dev enp0s25 scope link metric 1000 LiveMediaBuild: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105) MachineType: LENOVO 2333B15 Package: network-manager 1.8.4-1ubuntu3 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.13.0-21-generic N/A linux-backports-modules-4.13.0-21-generic N/A linux-firmware 1.169.1 Tags: artful Uname: Linux 4.13.0-21-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 04/19/2017 dmi.bios.vendor: LENOVO dmi.bios.version: G2ETA8WW (2.68 ) dmi.board.asset.tag: Not Available dmi.board.name: 2333B15 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: R9YFLET dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ETA8WW(2.68):bd04/19/2017:svnLENOVO:pn2333B15:pvrThinkPadX230:rvnLENOVO:rn2333B15:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad X230 dmi.product.name: 2333B15 dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH SLAVE Wired connection 1 fbb05466-4739-330d-ba0a-109a6e5b3cfe 802-3-ethernet 1520971267 Di 13 Mär 2018 20:01:07 UTC yes 4294966297 no /org/freedesktop/NetworkManager/Settings/1 yes enp0s25 activated /org/freedesktop/NetworkManager/ActiveConnection/5 -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH enp0s25 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 fbb05466-4739-330d-ba0a-109a6e5b3cfe /org/freedesktop/NetworkManager/ActiveConnection/5 wlp3s0 wifi disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.8.4 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754759/+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