Network issue is either kernel or Network Manager. After the issue occurs we need to see the current 'dmesg' log (which will show if devices resumed successfully) and /var/log/syslog (where Network Manager is very verbose).
We also need to know which devices the system has: lspci -nnk lsusb -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1760073 Title: No network from suspend resume Status in lightdm package in Ubuntu: New Status in linux package in Ubuntu: Confirmed Bug description: Following a resume from suspend - no network available on machine. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: lightdm 1.25.2-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Mar 30 11:53:22 2018 InstallationDate: Installed on 2018-03-08 (21 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1) SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: XFCE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-08 (23 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1) Package: linux PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Tags: bionic third-party-packages Uname: Linux 4.15.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True --- ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: XFCE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-08 (23 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1) Package: linux PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Tags: bionic third-party-packages Uname: Linux 4.15.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True --- ApportVersion: 2.20.9-0ubuntu2 Architecture: amd64 CurrentDesktop: XFCE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-08 (23 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180306.1) Package: linux PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Tags: bionic Uname: Linux 4.15.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1760073/+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
