Caso ajude, segue abaixo o syslog:
Oct 19 14:43:29 erico-note avahi-daemon[626]: Joining mDNS multicast group on interface wlp3s0.IPv6 with address fe80::10d2:4da4:3d96:67b2.
Oct 19 14:43:29 erico-note avahi-daemon[626]: New relevant interface wlp3s0.IPv6 for mDNS.
Oct 19 14:43:29 erico-note avahi-daemon[626]: Registering new address record for fe80::10d2:4da4:3d96:67b2 on wlp3s0.*.
Oct 19 14:43:31 erico-note kernel: [ 7.637209] usb 1-1.1: device descriptor read/64, error -110
Oct 19 14:43:31 erico-note NetworkManager[778]: <info> [1476895411.5527] manager: startup complete
Oct 19 14:43:31 erico-note systemd[1]: Started Network Manager Wait Online.
Oct 19 14:43:31 erico-note systemd[1]: Reached target Network is Online.
Oct 19 14:43:31 erico-note systemd[1]: Starting /etc/rc.local Compatibility...
Oct 19 14:43:31 erico-note systemd[1]: Starting LSB: start Samba daemons for the AD DC...
Oct 19 14:43:31 erico-note systemd[1]: Starting LSB: start Samba NetBIOS nameserver (nmbd)...
Oct 19 14:43:31 erico-note systemd[1]: Started /etc/rc.local Compatibility.
Oct 19 14:43:31 erico-note systemd[1]: Starting Hold until boot process finishes up...
Oct 19 14:43:31 erico-note systemd[1]: Started Hold until boot process finishes up.
Oct 19 14:43:31 erico-note systemd[1]: Starting Set console scheme...
Oct 19 14:43:31 erico-note systemd[1]: Started Getty on tty1.
Oct 19 14:43:31 erico-note systemd[1]: Reached target Login Prompts.
Oct 19 14:43:31 erico-note systemd[1]: Started Set console scheme.
Oct 19 14:43:31 erico-note systemd[1]: Started LSB: start Samba daemons for the AD DC.
Oct 19 14:43:31 erico-note nmbd[1406]: * Starting NetBIOS name server nmbd
Oct 19 14:43:31 erico-note nmbd[1406]: ...done.
Oct 19 14:43:31 erico-note systemd[1]: Started LSB: start Samba NetBIOS nameserver (nmbd).
Oct 19 14:43:31 erico-note systemd[1]: Starting LSB: start Samba SMB/CIFS daemon (smbd)...
Oct 19 14:43:31 erico-note smbd[1447]: * Starting SMB/CIFS daemon smbd
Oct 19 14:43:31 erico-note smbd[1447]: ...done.
Oct 19 14:43:31 erico-note systemd[1]: Started LSB: start Samba SMB/CIFS daemon (smbd).
Oct 19 14:43:31 erico-note systemd[1]: Reached target Multi-User System.
Oct 19 14:43:31 erico-note systemd[1]: Reached target Graphical Interface.
Oct 19 14:43:31 erico-note systemd[1]: Started Stop ureadahead data collection 45s after completed startup.
Oct 19 14:43:32 erico-note systemd[1]: Starting Notify bootloader that boot was successful...
Oct 19 14:43:32 erico-note systemd[1]: Starting Update UTMP about System Runlevel Changes...
Oct 19 14:43:32 erico-note snap[1465]: Ignoring 'booted' on classic
Oct 19 14:43:32 erico-note systemd[1]: Started Notify bootloader that boot was successful.
Oct 19 14:43:32 erico-note systemd[1]: Started Update UTMP about System Runlevel Changes.
Oct 19 14:43:32 erico-note org.gtk.vfs.Daemon[1069]: A connection to the bus can't be made
Oct 19 14:43:32 erico-note systemd[1]: Created slice User Slice of erico.
Oct 19 14:43:32 erico-note systemd[1]: Starting User Manager for UID 1000...
Oct 19 14:43:32 erico-note systemd[1]: Started Session c2 of user erico.
Oct 19 14:43:32 erico-note systemd[1488]: Reached target Sockets.
Oct 19 14:43:32 erico-note systemd[1488]: Reached target Timers.
Oct 19 14:43:32 erico-note systemd[1488]: Reached target Paths.
Oct 19 14:43:32 erico-note systemd[1488]: Reached target Basic System.
Oct 19 14:43:32 erico-note systemd[1488]: Reached target Default.
Oct 19 14:43:32 erico-note systemd[1488]: Startup finished in 10ms.
Oct 19 14:43:32 erico-note systemd[1]: Started User Manager for UID 1000.
Oct 19 14:43:33 erico-note org.ayatana.bamf[1575]: bamfdaemon start/running, process 1677
Oct 19 14:43:34 erico-note org.a11y.atspi.Registry[1733]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Successfully made thread 1812 of process 1812 (n/a) owned by '1000' high priority at nice level -11.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 4 threads of 2 processes of 2 users.
Oct 19 14:43:34 erico-note org.gnome.ScreenSaver[1575]: ** (gnome-screensaver:1800): WARNING **: Couldn't get presence status: The name org.gnome.SessionManager was not provided by any .service files
Oct 19 14:43:34 erico-note gnome-session[1716]: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Oct 19 14:43:34 erico-note gnome-session[1716]: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Oct 19 14:43:34 erico-note gnome-session[1716]: SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 4 threads of 2 processes of 2 users.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Successfully made thread 1848 of process 1812 (n/a) owned by '1000' RT at priority 5.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 5 threads of 2 processes of 2 users.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 5 threads of 2 processes of 2 users.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Successfully made thread 1851 of process 1812 (n/a) owned by '1000' RT at priority 5.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 6 threads of 2 processes of 2 users.
Oct 19 14:43:34 erico-note pulseaudio[1812]: [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio agent with ofono: org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Successfully made thread 1856 of process 1856 (n/a) owned by '1000' high priority at nice level -11.
Oct 19 14:43:34 erico-note rtkit-daemon[1164]: Supervising 7 threads of 3 processes of 2 users.
Oct 19 14:43:34 erico-note pulseaudio[1856]: [pulseaudio] pid.c: Daemon already running.
Oct 19 14:43:34 erico-note gnome-session[1716]: (process:1865): indicator-application-service-WARNING **: Unable to get watcher name 'org.kde.StatusNotifierWatcher'
Oct 19 14:43:34 erico-note gnome-session[1716]: (process:1865): indicator-application-service-WARNING **: Name Lost
Oct 19 14:43:34 erico-note gnome-session-binary[1716]: Entering running state
Oct 19 14:43:34 erico-note dbus[648]: [system] Activating via systemd: service name='org.freedesktop.UDisks2' unit='udisks2.service'
Oct 19 14:43:34 erico-note systemd[1]: Starting Disk Manager...
Oct 19 14:43:34 erico-note udisksd[1906]: udisks daemon version 2.1.7 starting
Oct 19 14:43:34 erico-note dbus[648]: [system] Successfully activated service 'org.freedesktop.UDisks2'
Oct 19 14:43:34 erico-note systemd[1]: Started Disk Manager.
Oct 19 14:43:34 erico-note udisksd[1906]: Acquired the name org.freedesktop.UDisks2 on the system message bus
Oct 19 14:43:34 erico-note org.gtk.vfs.AfcVolumeMonitor[1575]: Volume monitor alive
Oct 19 14:43:34 erico-note gnome-session[1716]: Starting Dropbox...
Oct 19 14:43:34 erico-note gnome-session[1716]: (gnome-software:1869): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered
Oct 19 14:43:34 erico-note gnome-session[1716]: (gnome-software:1869): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered
Oct 19 14:43:34 erico-note dbus[648]: [system] Activating service name='org.freedesktop.fwupd' (using servicehelper)
Oct 19 14:43:34 erico-note gnome-session[1716]: Initializing nautilus-dropbox 2015.10.28
Oct 19 14:43:35 erico-note org.gnome.ScreenSaver[1575]: ** Message: Lost the name, shutting down.
Oct 19 14:43:35 erico-note gnome-session[1716]: Dropbox isn't running!
Oct 19 14:43:35 erico-note gnome-session[1716]: Done!
Oct 19 14:43:35 erico-note systemd[1]: Started Daemon for generating UUIDs.
Oct 19 14:43:36 erico-note NetworkManager[778]: <info> [1476895416.4585] WiFi hardware radio set enabled
Oct 19 14:43:36 erico-note NetworkManager[778]: <info> [1476895416.4586] WWAN hardware radio set enabled
Oct 19 14:43:41 erico-note kernel: [ 18.221356] usb 1-1.1: device not accepting address 5, error -32
Oct 19 14:43:41 erico-note kernel: [ 18.293393] usb 1-1.1: new full-speed USB device number 6 using ehci-pci
Oct 19 14:43:41 erico-note kernel: [ 18.387646] usb 1-1.1: New USB device found, idVendor=13d3, idProduct=3362
Oct 19 14:43:41 erico-note kernel: [ 18.387653] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Oct 19 14:43:41 erico-note kernel: [ 18.387656] usb 1-1.1: Product: Bluetooth USB Host Controller
Oct 19 14:43:41 erico-note kernel: [ 18.387659] usb 1-1.1: Manufacturer: Atheros Communications
Oct 19 14:43:41 erico-note kernel: [ 18.387662] usb 1-1.1: SerialNumber: Alaska Day 2006
Oct 19 14:43:41 erico-note mtp-probe: checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3"
Oct 19 14:43:41 erico-note kernel: [ 18.400476] media: Linux media interface: v0.10
Oct 19 14:43:41 erico-note kernel: [ 18.404914] Linux video capture interface: v2.00
Oct 19 14:43:41 erico-note mtp-probe: bus: 1, device: 4 was not an MTP device
Oct 19 14:43:41 erico-note org.freedesktop.fwupd[648]: (fwupd:1994): Fu-WARNING **: Failed to coldplug: UEFI firmware updating not supported
Oct 19 14:43:41 erico-note systemd[1]: Starting Load/Save RF Kill Switch Status...
Oct 19 14:43:41 erico-note kernel: [ 18.414100] uvcvideo: Found UVC 1.00 device ASUS USB2.0 Webcam (1bcf:2883)
Oct 19 14:43:41 erico-note kernel: [ 18.431868] input: ASUS USB2.0 Webcam as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input18
Oct 19 14:43:41 erico-note kernel: [ 18.431994] usbcore: registered new interface driver uvcvideo
Oct 19 14:43:41 erico-note kernel: [ 18.431996] USB Video Class driver (1.1.1)
Oct 19 14:43:41 erico-note dbus[648]: [system] Successfully activated service 'org.freedesktop.UPower'
Oct 19 14:43:41 erico-note systemd[1]: Started Daemon for power management.
Oct 19 14:43:41 erico-note dbus[648]: [system] Activating via systemd: service name='org.freedesktop.ColorManager' unit='colord.service'
Oct 19 14:43:41 erico-note systemd[1]: Starting Manage, Install and Generate Color Profiles...
Oct 19 14:43:41 erico-note dbus[648]: [system] Successfully activated service 'org.freedesktop.ColorManager'
Oct 19 14:43:41 erico-note systemd[1]: Started Manage, Install and Generate Color Profiles.
Oct 19 14:43:41 erico-note gnome-session[1716]: /usr/bin/prime-indicator:111: GtkWarning: Não foi possível localizar a ferramenta de temas no module_path: "adwaita",
Oct 19 14:43:41 erico-note gnome-session[1716]: gtk.main()
Oct 19 14:43:41 erico-note gnome-session[1716]: (clipit:1868): Gtk-WARNING **: Não foi possível localizar a ferramenta de temas no module_path: "adwaita",
Oct 19 14:43:41 erico-note gnome-session[1716]: (clipit:1868): Gtk-WARNING **: Não foi possível localizar a ferramenta de temas no module_path: "adwaita",
Oct 19 14:43:41 erico-note gnome-session[1716]: (nm-applet:1861): GLib-CRITICAL **: g_hash_table_remove_all: assertion 'hash_table != NULL' failed
Oct 19 14:43:41 erico-note gnome-session[1716]: (nm-applet:1861): nm-applet-CRITICAL **: nma_icons_free: assertion 'NM_IS_APPLET (applet)' failed
Oct 19 14:43:42 erico-note dbus[648]: [system] Activating via systemd: service name='org.freedesktop.locale1' unit='dbus-org.freedesktop.locale1.service'
Oct 19 14:43:42 erico-note systemd[1]: Starting Locale Service...
Oct 19 14:43:42 erico-note dbus[648]: [system] Successfully activated service 'org.freedesktop.locale1'
Oct 19 14:43:42 erico-note systemd[1]: Started Locale Service.
Oct 19 14:43:42 erico-note dbus[648]: [system] Successfully activated service 'org.freedesktop.fwupd'
Oct 19 14:43:43 erico-note kernel: [ 20.429410] Bluetooth: hci0 command 0x1001 tx timeout
Oct 19 14:43:45 erico-note kernel: [ 22.433449] Bluetooth: hci0 command 0x1009 tx timeout
Oct 19 14:43:54 erico-note org.gnome.zeitgeist.Engine[1575]: ** (zeitgeist-datahub:2291): WARNING **: zeitgeist-datahub.vala:229: Unable to get name "org.gnome.zeitgeist.datahub" on the bus!
Oct 19 14:43:55 erico-note org.gtk.vfs.Daemon[1575]: ** (gvfsd:1626): WARNING **: dbus_mount_reply: Error from org.gtk.vfs.Mountable.mount(): Falha ao recuperar a lista de compartilhamento do servidor: Conexão recusada
Oct 19 14:43:55 erico-note org.gtk.vfs.Daemon[1575]: ** (process:2220): WARNING **: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: A localização especificada não está montada
Oct 19 14:43:55 erico-note org.gtk.vfs.Daemon[1575]: ** (process:2227): WARNING **: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: Não há suporte à operação pelo backend
Oct 19 14:43:55 erico-note systemd[1]: Time has been changed
Oct 19 14:43:55 erico-note systemd[1055]: Time has been changed
Oct 19 14:43:55 erico-note systemd[1488]: Time has been changed
Oct 19 14:43:55 erico-note systemd-timesyncd[482]: Synchronized to time server 91.189.89.198:123 (ntp.ubuntu.com).
Oct 19 14:43:55 erico-note systemd[1]: apt-daily.timer: Adding 2h 23min 16.983674s random time.
Oct 19 14:43:55 erico-note systemd[1]: snapd.refresh.timer: Adding 3h 31min 26.528323s random time.
Oct 19 14:43:55 erico-note systemd[1]: snapd.refresh.timer: Adding 38min 41.611585s random time.
Oct 19 14:43:55 erico-note systemd[1]: Starting Daily apt activities...
Oct 19 14:44:00 erico-note systemd-udevd[401]: Process '/bin/hciconfig hci0 up' failed with exit code 1.
Oct 19 14:44:00 erico-note systemd[1]: Started Load/Save RF Kill Switch Status.
Oct 19 14:44:00 erico-note systemd[1]: Reached target Bluetooth.
Oct 19 14:44:16 erico-note systemd[1]: Starting Stop ureadahead data collection...
Oct 19 14:44:16 erico-note systemd[1]: Stopped Read required files in advance.
Oct 19 14:44:16 erico-note systemd[1]: Started Stop ureadahead data collection.
Oct 19 14:44:17 erico-note systemd[1]: Started Daily apt activities.
Oct 19 14:44:17 erico-note systemd[1]: apt-daily.timer: Adding 1h 46min 41.574542s random time.
Oct 19 14:44:17 erico-note systemd[1]: Startup finished in 1.667s (kernel) + 53.299s (userspace) = 54.966s.
Oct 19 14:44:17 erico-note systemd[1]: apt-daily.timer: Adding 9h 57min 15.125596s random time.
...
Detalhe: Assim como a interface aleatoriamente sobe desconfigurada, o bluetooth também às vezes não starta, mas enfim, isso já é outra questão.. Obrigado desde já!