No wifi connection in thinkpad-T420 after Update

dan001 · 2015-12-30 16:50:38

After the pacman -Suy, I have no wifi connection. This is lspci | grep Network:

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)

03:00.0 Network controller : Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)

ewaller · 2015-12-30 16:59:32

What is the output of ip link ?
What are you using to control your wifi? Post the output of find /etc/systemd/system
What is the output of rfkill list ?

dan001 · 2015-12-30 17:09:15

 rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
             Soft blocked: yes
             Hard blocked: no
1: phy0: Wireless LAN
            Soft blocked: no
            hard blocked: no

I will type find /etc/systemd/system and ip link outputs very soon.

dan001 · 2015-12-30 17:49:18

ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
mode DEFAULT group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UP mode DEFAULT group default qlen 1000
    link/ether 00:21:cc:c0:bf:55 brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state
DOWN mode DEFAULT group default qlen 1000
    link/ether 8c:70:5a:64:fa:54 brd ff:ff:ff:ff:ff:ff

find /etc/systemd/system/
/etc/systemd/system/
/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service
/etc/systemd/system/multi-user.target.wants
/etc/systemd/system/multi-user.target.wants/NetworkManager.service
/etc/systemd/system/multi-user.target.wants/remote-fs.target
/etc/systemd/system/multi-user.target.wants/dhcpcd.service
/etc/systemd/system/multi-user.target.wants/dhcpcd@enp0s25.service
/etc/systemd/system/multi-user.target.wants/dhcpcd@wlp3s0.service
/etc/systemd/system/multi-user.target.wants/wicd.service
/etc/systemd/system/dbus-org.wicd.daemon.service
/etc/systemd/system/getty.target.wants
/etc/systemd/system/getty.target.wants/getty@tty1.service
/etc/systemd/system/dbus-org.

ewaller · 2015-12-30 18:28:41

Your configuration is a bit of a mess. If you are using wicd or NetworkManager, you don't use the dhcpcd@ services. wicd and NetworkManager will run the dhcpcd daemon as needed.
You certainly don't want to run wicd and NetworkManager at the same time.
You probably don't want to run dhcpcd service concurrently with any dhcpcd@ service.

Do you want to use wicd for your wireless? or NetworkManager?
Is there any reason you do, or do not, want to control your wired network with wicd or NetworkManager? You need to either do that and get rid of the dhcpcd@enp0s25.service; or tell the choosen program not to mess with the wired network. Get rid of dhcpcd.service and dhcpcd@wlp3s0.service

Tomi98 · 2015-12-30 18:53:38

I installed wicd for a chance only. Also I can not use wired connection. So by disableing extra services, the output of find /etc/systemd/system is:

/etc/systemd/system/
/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service
/etc/systemd/system/multi-user.target.wants
/etc/systemd/system/multi-user.target.wants/NetworkManager.service
/etc/systemd/system/multi-user.target.wants/remote-fs.target
/etc/systemd/system/getty.target.wants
/etc/systemd/system/getty.target.wants/getty@tty1.service
/etc/systemd/system/dbus-org.freedesktop.NetworkManager.service

But no connection yet.

ewaller · 2015-12-30 18:59:17

Okay, what is the output of sudo iw wlp3s0 scan

If that is not interesting, try sudo ip link set wlp3s0 up
then retry the scan.

Last edited by ewaller (2015-12-30 19:00:32)

dan001 · 2015-12-30 19:05:45

Dear ewaller, It has a huge output. Do you want all of its output? (I must type them.)

ewaller · 2015-12-30 19:14:34

No. Does your access point appear in the output?

dan001 · 2015-12-30 19:22:35

I do

sudo iw wlp3s0 scan > a.txt

but there is no word 'access' or 'point' in that file (maybe I must search another word).

But I have connection now!

Last edited by dan001 (2015-12-30 19:25:33)

ewaller · 2015-12-30 19:32:49

I am glad it is working. When I said "access point" I was not looking for the literals "access" "point" in the output, I wanted to find out if the SSID of the access point that you wanted to attach to was seen by the radio. It tells me if we are fighting the interface, or the user space tools

dan001 · 2015-12-30 19:33:59

Now it disconnect automatically and I reconnect with nm-applet. After that, It disconnect again.

Last edited by dan001 (2015-12-30 19:37:34)

dan001 · 2015-12-30 19:36:30

ewaller wrote:

I am glad it is working. When I said "access point" I was not looking for the literals "access" "point" in the output, I wanted to find out if the SSID of the access point that you wanted to attach to was seen by the radio. It tells me if we are fighting the interface, or the user space tools

Thank you ewaller. Yes, SSID is appeared in the output.

But reconnection is a new problem (for a new topic)?

ewaller · 2015-12-30 19:38:08

No, lets keep it here.
What is the output of systemctl --type service --no-pager

Tomi98 · 2015-12-30 19:45:24

I have a cool disk now.

systemctl --type service --no-pager 
  UNIT                        LOAD   ACTIVE SUB     DESCRIPTION
  dbus.service                loaded active running D-Bus System Message Bus
● dhcpcd.service              loaded failed failed  dhcpcd on all interfaces
● dhcpcd@enp0s25.service      loaded failed failed  dhcpcd on enp0s25
● dhcpcd@wlp3s0.service       loaded failed failed  dhcpcd on wlp3s0
  getty@tty1.service          loaded active running Getty on tty1
  kmod-static-nodes.service   loaded active exited  Create list of required stat
● netctl@wlp3s0\x2ddanisor.service loaded failed failed  Networking for netctl profil
  NetworkManager.service      loaded active running Network Manager
  polkit.service              loaded active running Authorization Manager
  systemd-backlight@backlight:acpi_video0.service loaded active exited  Load/Save Screen Backlight B
  systemd-backlight@backlight:intel_backlight.service loaded active exited  Load/Save Screen Backlight B
  systemd-journal-flush.service loaded active exited  Flush Journal to Persistent 
  systemd-journald.service    loaded active running Journal Service
  systemd-logind.service      loaded active running Login Service
  systemd-random-seed.service loaded active exited  Load/Save Random Seed
  systemd-remount-fs.service  loaded active exited  Remount Root and Kernel File
  systemd-sysctl.service      loaded active exited  Apply Kernel Variables
  systemd-tmpfiles-setup-dev.service loaded active exited  Create Static Device Nodes i
  systemd-tmpfiles-setup.service loaded active exited  Create Volatile Files and Di
  systemd-udev-trigger.service loaded active exited  udev Coldplug all Devices
  systemd-udevd.service       loaded active running udev Kernel Device Manager
  systemd-update-utmp.service loaded active exited  Update UTMP about System Boo
  systemd-user-sessions.service loaded active exited  Permit User Sessions
  systemd-vconsole-setup.service loaded active exited  Setup Virtual Console
  udisks2.service             loaded active running Disk Manager
  upower.service              loaded active running Daemon for power management
  user@1000.service           loaded active running User Manager for UID 1000
  wicd.service                loaded active running Wicd a wireless and wired ne
  wpa_supplicant.service      loaded active running WPA supplicant

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

29 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.

Arch Linux

#1 2015-12-30 16:50:38

No wifi connection in thinkpad-T420 after Update

#2 2015-12-30 16:59:32

Re: No wifi connection in thinkpad-T420 after Update

#3 2015-12-30 17:09:15

Re: No wifi connection in thinkpad-T420 after Update

#4 2015-12-30 17:49:18

Re: No wifi connection in thinkpad-T420 after Update

#5 2015-12-30 18:28:41

Re: No wifi connection in thinkpad-T420 after Update

#6 2015-12-30 18:53:38

Re: No wifi connection in thinkpad-T420 after Update

#7 2015-12-30 18:59:17

Re: No wifi connection in thinkpad-T420 after Update

#8 2015-12-30 19:05:45

Re: No wifi connection in thinkpad-T420 after Update

#9 2015-12-30 19:14:34

Re: No wifi connection in thinkpad-T420 after Update

#10 2015-12-30 19:22:35

Re: No wifi connection in thinkpad-T420 after Update

#11 2015-12-30 19:32:49

Re: No wifi connection in thinkpad-T420 after Update

#12 2015-12-30 19:33:59

Re: No wifi connection in thinkpad-T420 after Update

#13 2015-12-30 19:36:30

Re: No wifi connection in thinkpad-T420 after Update

#14 2015-12-30 19:38:08

Re: No wifi connection in thinkpad-T420 after Update

#15 2015-12-30 19:45:24

Re: No wifi connection in thinkpad-T420 after Update

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