Quote from: TAKCuCT on November 07, 2017, 04:35:26 PM

Last part of fresh syslog:

Code:

Nov 7 02:19:51 m1-desktop gnome-session-binary[1711]: Entering running state
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (process:1969): indicator-application-service-WARNING **: Unable to get watcher name 'org.kde.StatusNotifierWatcher'
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (process:1969): indicator-application-service-WARNING **: Name Lost
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nautilus:1964): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nautilus:1964): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nautilus:1964): Gtk-CRITICAL **: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nautilus:1964): GLib-GObject-WARNING **: invalid (NULL) pointer instance
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nautilus:1964): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (nm-applet:1962): nm-applet-WARNING **: NetworkManager is not running
Nov 7 02:19:51 m1-desktop dbus[640]: [system] Activating service name='org.freedesktop.fwupd' (using servicehelper)
Nov 7 02:19:51 m1-desktop systemd[1]: Starting Stop ureadahead data collection...
Nov 7 02:19:51 m1-desktop systemd[1]: Stopped Read required files in advance.
Nov 7 02:19:51 m1-desktop systemd[1]: Started Stop ureadahead data collection.
Nov 7 02:19:51 m1-desktop gnome-session[1711]: (guake:1965): libglade-WARNING **: unknown attribute `swapped' for .
Nov 7 02:19:51 m1-desktop gnome-session[1711]: message repeated 21 times: [ (guake:1965): libglade-WARNING **: unknown attribute `swapped' for .]
Nov 7 02:19:51 m1-desktop gnome-session[1711]: INFO:guake.guake_app:Logging configuration complete
Nov 7 02:19:51 m1-desktop gnome-session[1711]: /usr/lib/python2.7/dist-packages/guake/guake_app.py:1785: GtkWarning: gtk_box_pack: assertion 'child->parent == NULL' failed
Nov 7 02:19:51 m1-desktop gnome-session[1711]: self.mainframe.pack_start(self.notebook, expand=True, fill=True, padding=0)
Nov 7 02:19:52 m1-desktop org.freedesktop.fwupd[640]: (fwupd:2010): Fu-WARNING **: Failed to coldplug: UEFI firmware updating not supported
Nov 7 02:19:52 m1-desktop dbus[640]: [system] Successfully activated service 'org.freedesktop.fwupd'
Nov 7 02:20:23 m1-desktop systemd[1]: dev-disk-by\x2did-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.device: Job dev-disk-by\x2did-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.device/start timed out.
Nov 7 02:20:23 m1-desktop systemd[1]: Timed out waiting for device dev-disk-by\x2did-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.device.
Nov 7 02:20:23 m1-desktop systemd[1]: Dependency failed for /mnt/usb-SanDisk_Cruzer_Blade_4C530001260812105231-0:0-part1.
Nov 7 02:20:23 m1-desktop systemd[1]: mnt-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.mount: Job mnt-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.mount/start failed with result 'dependency'.
Nov 7 02:20:23 m1-desktop systemd[1]: dev-disk-by\x2did-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.device: Job dev-disk-by\x2did-usb\x2dSanDisk_Cruzer_Blade_4C530001260812105231\x2d0:0\x2dpart1.device/start failed with result 'timeout'.
Nov 7 02:20:23 m1-desktop systemd[1]: dev-disk-by\x2duuid-55184403759586FB.device: Job dev-disk-by\x2duuid-55184403759586FB.device/start timed out.
Nov 7 02:20:23 m1-desktop systemd[1]: Timed out waiting for device dev-disk-by\x2duuid-55184403759586FB.device.
Nov 7 02:20:23 m1-desktop systemd[1]: Dependency failed for /mnt/55184403759586FB.
Nov 7 02:20:23 m1-desktop systemd[1]: mnt-55184403759586FB.mount: Job mnt-55184403759586FB.mount/start failed with result 'dependency'.
Nov 7 02:20:23 m1-desktop systemd[1]: Startup finished in 6.349s (kernel) + 1min 30.189s (userspace) = 1min 36.539s.
Nov 7 02:20:23 m1-desktop systemd[1]: dev-disk-by\x2duuid-55184403759586FB.device: Job dev-disk-by\x2duuid-55184403759586FB.device/start failed with result 'timeout'.
Nov 7 02:20:53 m1-desktop gnome-session[1711]: ** (update-notifier:2695): WARNING **: log file empty (logrotate?) /var/log/dpkg.log
Nov 7 02:20:53 m1-desktop gnome-session[1711]: ** (update-notifier:2695): WARNING **: log file empty (logrotate?) /var/log/apt/term.log
Nov 7 02:23:54 m1-desktop anacron[607]: Job `cron.daily' started
Nov 7 02:23:54 m1-desktop anacron[3608]: Updated timestamp for job `cron.daily' to 2017-11-07
Nov 7 02:23:54 m1-desktop cracklib: no dictionary update necessary.
Nov 7 02:23:54 m1-desktop systemd[1]: Reloading LSB: Apache2 web server.
Nov 7 02:23:54 m1-desktop apache2[3667]: * Reloading Apache httpd web server apache2
Nov 7 02:23:54 m1-desktop apache2[3667]: *
Nov 7 02:23:54 m1-desktop systemd[1]: Reloaded LSB: Apache2 web server.

Ok, nothing there other than @fullzero's USB reference (comment out last 2 lines of /etc/fstab to fix those mount timeout errors). Anyway, let's try another tact. Can you find anything related to the time when it last happened using:

Code:

journalctl -u NetworkManager

that should give you detailed networking information.