Alberto, Your log shows some issues with a USB device that looks like it might be causing some delays (on resume from sleep?). Looks like maybe an HP printer?
Please try unplugging your USB devices and see if that avoids the issue. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: gdm3 (Ubuntu) Status: New => Incomplete ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1756092 Title: Screen freeze for some time when unlocking Status in gdm3 package in Ubuntu: Incomplete Status in linux package in Ubuntu: Incomplete Bug description: When trying to unlock the machine, sometimes the screen freezes entirely (including mouse and keyboard input) for a long time either right away or after submitting the password. The freeze lasts for 10-20s, and sometimes the display goes into suspend. I've seen this behavior on both my computers, both fresh 18.04 installs. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gdm3 3.27.92-0ubuntu1 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: GNOME Date: Thu Mar 15 15:09:26 2018 InstallationDate: Installed on 2018-02-25 (17 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180225) SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1756092/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp