Your log shows an 11 second delay each time this happens: Nov 06 13:57:46 hostname gnome-session-binary[3428]: WARNING: Could not get session path for session. Check that logind is properly installed and pam_systemd is getting used at login. Nov 06 13:57:57 hostname unity-settings-[3399]: failed to turn the kbd backlight off: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface 'org.freedesktop.UPower.KbdBacklight' on object at path /org/freedesktop/UPower/KbdBacklight
and Nov 06 15:38:07 hostname gnome-session-binary[3428]: WARNING: Could not get session path for session. Check that logind is properly installed and pam_systemd is getting used at login. Nov 06 15:38:18 hostname unity-settings-[3399]: failed to turn the kbd backlight off: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface 'org.freedesktop.UPower.KbdBacklight' on object at path /org/freedesktop/UPower/KbdBacklight -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1730458 Title: Ubuntu (gnome) freezes temporarily upon login Status in gnome-shell package in Ubuntu: New Bug description: I have noticed that gnome-shell CPU usage shoots up to over 100% for a few seconds shortly after logging in, completely freezing the shell for a good 10-20s. This happens on a migrated Unity 7 > Ubuntu session as well as on a completely new Ubuntu session (eg a user just created to test this). Ubuntu 17.10 (upgraded from 17.04), Ubuntu session (Wayland). ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu5 ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4 Uname: Linux 4.13.0-16-lowlatency x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 CurrentDesktop: Unity:Unity7:ubuntu Date: Mon Nov 6 17:05:45 2017 DisplayManager: lightdm GsettingsChanges: b'org.gnome.shell' b'favorite-apps' b"['/home/development/bin/firefox.desktop', 'org.gnome.Nautilus.desktop', 'jetbrains-phpstorm.desktop', 'code.desktop', 'postman.desktop', 'standard_notes.desktop']" b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" b'org.gnome.desktop.interface' b'icon-theme' b"'ePapirus'" b'org.gnome.desktop.interface' b'gtk-theme' b"'DarkNumix'" InstallationDate: Installed on 2016-03-13 (603 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-10-19 (17 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1730458/+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
