Also, what are these dots in syslog?

Sep 15 09:55:14 p5520 kernel: [   21.539677] hid-generic 0003:046D:C31F.0005: input,hiddev1,hidraw4: USB HID v1.10 Device [Logitech USB Keyboard] on usb-0000:3e:00.0-1.7/input1
Sep 15 09:55:14 p5520 mtp-probe: checking bus 3, device 4: "/sys/devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:3e:00.0/usb3/3-1/3-1.7"
Sep 15 09:55:14 p5520 mtp-probe: checking bus 3, device 3: "/sys/devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:3e:00.0/usb3/3-1/3-1.5"
Sep 15 09:55:14 p5520 mtp-probe: bus: 3, device: 4 was not an MTP device
Sep 15 09:55:14 p5520 mtp-probe: bus: 3, device: 3 was not an MTP device
Sep 15 09:55:14 p5520 kernel: [   21.595628] usbcore: registered new interface driver r8152
Sep 15 09:55:14 p5520 kernel: [   21.606763] usbcore: registered new interface driver cdc_ether
Sep 15 09:55:14 p5520 kernel: [   21.683476] usb 4-1.2: reset SuperSpeed USB device number 3 using xhci_hcd
Sep 15 09:55:14 p5520 kernel: [   21.706117] r8152 4-1.2:1.0 (unnamed net_device) (uninitialized): Using pass-thru MAC addr d4:81:d7:35:8c:11
Sep 15 09:55:14 p5520 NetworkManager[1160]: <info>  [1505462114.7966] manager: (eth0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/4)
Sep 15 09:55:14 p5520 kernel: [   21.759684] r8152 4-1.2:1.0 eth0: v1.08.9
Sep 15 09:55:14 p5520 NetworkManager[1160]: <info>  [1505462114.8162] devices added (path: /sys/devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:3e:00.0/usb4/4-1/4-1.2/4-1.2:1.0/net/eth0,
 iface: eth0)
Sep 15 09:55:14 p5520 NetworkManager[1160]: <info>  [1505462114.8162] device added (path: /sys/devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:3e:00.0/usb4/4-1/4-1.2/4-1.2:1.0/net/eth0,
iface: eth0): no ifupdown configuration found.
Sep 15 09:55:14 p5520 NetworkManager[1160]: <info>  [1505462114.8175] device (eth0): state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Sep 15 09:55:14 p5520 kernel: [   21.783371] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Sep 15 09:55:14 p5520 kernel: [   21.812778] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Sep 15 09:55:15 p5520 kernel: [   22.941812] usbcore: registered new interface driver snd-usb-audio
Sep 15 09:55:15 p5520 systemd-udevd[2621]: Process '/usr/sbin/alsactl -E HOME=/run/alsa restore 1' failed with exit code 99.
Sep 15 09:55:16 p5520 pulseaudio[2115]: [pulseaudio] alsa-util.c: Unable to load mixer: Zły argument
Sep 15 09:55:16 p5520 pulseaudio[2115]: [pulseaudio] sink.c: Default and alternate sample rates are the same.
Sep 15 09:55:16 p5520 rtkit-daemon[2118]: Supervising 0 threads of 0 processes of 1 users.
Sep 15 09:55:16 p5520 rtkit-daemon[2118]: message repeated 4 times: [ Supervising 0 threads of 0 processes of 1 users.]
Sep 15 09:55:16 p5520 pulseaudio[2115]: [pulseaudio] alsa-util.c: Unable to load mixer: Zły argument
Sep 15 09:55:16 p5520 pulseaudio[2115]: [pulseaudio] source.c: Default and alternate sample rates are the same.
Sep 15 09:55:16 p5520 rtkit-daemon[2118]: Supervising 0 threads of 0 processes of 1 users.
Sep 15 09:55:16 p5520 rtkit-daemon[2118]: message repeated 4 times: [ Supervising 0 threads of 0 processes of 1 users.]
Sep 15 09:55:17 p5520 ModemManager[1080]: <info>  Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:1d.6/0000:06:00.0/0000:07:02.0/0000:3e:00.0/usb4/4-1/4-1.2': not supported by any
 plugin
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...................................................................................................................................Sep 15 09:57:06 p5520 rsyslogd: [origin software="rsyslogd" swVersion=
"8.16.0" x-pid="1141" x-info="http://www.rsyslog.com"] start
Sep 15 09:57:06 p5520 systemd-modules-load[393]: Inserted module 'lp'
Sep 15 09:57:06 p5520 systemd-modules-load[393]: Inserted module 'ppdev'