Public bug reported: I have a Dell Precision 5520 that came pre-installed with Ubuntu 16.04.
I use it at home on wireless exclusively. When I take it to work, I plug it into ethernet via the ethernet dongle. Without fail, almost an hour later, all networking stops working. I can ping neither domains not IPs, even on my local network. If I try to run `sudo service networking restart` or `sudo service network-manager restart` then Gnome-Shell hangs. If I switch to an Fn terminal, I can run some commands, but eventually all sudo commands there hang too. Holding down ctrl+alt+del says "ctrl+alt+del pressed 7 times in 2 seconds, rebooting immediately", but after 15 minutes, it still doesn't reboot, forcing me to do a hard reboot. Afterwards, the laptop works fine until the next day, when it all happens again. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-78-generic 4.4.0-78.99 ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62 Uname: Linux 4.4.0-78-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 2444 F.... pulseaudio CurrentDesktop: GNOME Date: Wed May 31 14:14:09 2017 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 InstallationDate: Installed on 2017-03-09 (82 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. Precision 5520 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-78-generic.efi.signed root=UUID=b3c434bc-85ba-4b42-a137-374a088e6c0f ro acpi_rev_override quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-78-generic N/A linux-backports-modules-4.4.0-78-generic N/A linux-firmware 1.157.10 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/28/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.2 dmi.board.name: 0GPNW9 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.0.2:bd12/28/2016:svnDellInc.:pnPrecision5520:pvr:rvnDellInc.:rn0GPNW9:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.name: Precision 5520 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial ** Attachment added: "dmesg-20170531.txt" https://bugs.launchpad.net/bugs/1694787/+attachment/4886866/+files/dmesg-20170531.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1694787 Title: Dell Precision 5520 crashing after connecting to ethernet To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1694787/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs