@Dave Goldsbrough Thank you for your suggestion, but unfortunately i tried this approach already multiple times and it didn't help. I also thought it probably is an issue due to battery saving mode so I tried the following command without any positive result:
sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1766940 Title: Wifi interface does often not show up after reboot Status in xorg package in Ubuntu: Confirmed Bug description: Since i got a new laptop (ThinkPad L580) and installed Kubuntu 16.04.4 LTS with kernel 4.13.0-38-generic, i sometimes had to reboot so that the wifi interface showed up. Once it showed up it worked continuously for hours without an issue. When the update came to kernel 4.13.0-39-generic, it got worse. Now i have to reboot at least 5 times until my wifi interface shows up. Once it shows up it works continuously like on the previous kernel for the whole session but on next reboot the interface is missing again. It seems random whether the interface is loaded (or found) when booting. Don't know if this is an kernel issue but since it got lot worse right after the latest kernel update i assume so. Wired connections are working well without any issues. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-39.44~16.04.1-generic 4.13.16 Uname: Linux 4.13.0-39-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.16 Architecture: amd64 CurrentDesktop: KDE Date: Wed Apr 25 19:16:23 2018 InstallationDate: Installed on 2018-04-16 (9 days ago) InstallationMedia: Kubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1766940/+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
