Why my networkmanager in the notification area are disabled?

michelangeli · 02-19-2016, 07:10 AM

I'have kubuntu 14.04 lts. In the notification area the networkmanager icon are disabled.The network has always worked but at the next boot
but suddenly after working all night in the morning it was not working anymore.

Code:

michelangeli@hp:~$ lspci -nn | grep -i net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 03)
04:00.0 Network controller [0280]: Ralink corp. RT2790 Wireless 802.11n 1T/2R PCIe [1814:0781]
michelangeli@hp:~$ 

michelangeli@hp:~$ sudo lshw -C network
[sudo] password for michelangeli: 
  *-network DISABLED      
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 03
       serial: 6c:62:6d:bf:d1:85
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:41 ioport:d800(size=256) memory:fbdff000-fbdfffff memory:faffc000-faffffff memory:fbdc0000-fbddffff
  *-network DISABLED
       description: Wireless interface
       product: RT2790 Wireless 802.11n 1T/2R PCIe
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 70:f1:a1:3c:39:84
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=3.13.0-77-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:19 memory:fbff0000-fbffffff

michelangeli@hp:~$ rfkill list
0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
michelangeli@hp:~$ 

michelangeli@hp:~$ dmesg | grep r8169
[    0.762205] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[    0.762214] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control
[    0.762393] r8169 0000:02:00.0: irq 42 for MSI/MSI-X
[    0.762553] r8169 0000:02:00.0 eth0: RTL8168d/8111d at 0xffffc90000c6e000, 6c:62:6d:bf:d1:85, XID 081000c0 IRQ 42
[    0.762555] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]

michelangeli@hp:~$ lsmod
Module                  Size  Used by
ipt_MASQUERADE         12880  3 
iptable_nat            13011  1 
nf_nat_ipv4            13263  1 iptable_nat
nf_nat                 21841  3 ipt_MASQUERADE,nf_nat_ipv4,iptable_nat
nf_conntrack_ipv4      15012  2 
nf_defrag_ipv4         12758  1 nf_conntrack_ipv4
xt_conntrack           12760  1 
nf_conntrack           97202  6 ipt_MASQUERADE,nf_nat,nf_nat_ipv4,xt_conntrack,iptable_nat,nf_conntrack_ipv4
ipt_REJECT             12541  2 
xt_CHECKSUM            12549  1 
iptable_mangle         12695  1 
xt_tcpudp              12884  6 
bridge                110841  0 
stp                    12976  1 bridge
llc                    14552  2 stp,bridge
ip6table_filter        12815  0 
ip6_tables             27025  1 ip6table_filter
iptable_filter         12810  1 
ip_tables              27239  3 iptable_filter,iptable_mangle,iptable_nat
ebtable_nat            12807  0 
ebtables               30913  1 ebtable_nat
x_tables               34059  11 ip6table_filter,xt_CHECKSUM,ip_tables,xt_tcpudp,ipt_MASQUERADE,xt_conntrack,iptable_filter,ebtables,ipt_REJECT,iptable_mangle,ip6_tables
snd_usb_audio         155060  0 
snd_usbmidi_lib        29323  1 snd_usb_audio
dm_crypt               23177  0 
gpio_ich               13476  0 
snd_hda_codec_hdmi     46368  1 
intel_powerclamp       14705  0 
coretemp               13435  0 
bnep                   19624  2 
rfcomm                 69160  4 
kvm                   455843  0 
bluetooth             391136  10 bnep,rfcomm                                                                                                                                       
crct10dif_pclmul       14289  0 
crc32_pclmul           13113  0 
snd_hda_codec_realtek    65904  1 
snd_hda_intel          56531  5 
snd_hda_codec         193017  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep              13602  2 snd_usb_audio,snd_hda_codec
aesni_intel            55624  0 
aes_x86_64             17131  1 aesni_intel
lrw                    13286  1 aesni_intel
snd_seq_midi           13324  0 
gf128mul               14951  1 lrw
snd_seq_midi_event     14899  1 snd_seq_midi
arc4                   12608  2 
glue_helper            13990  1 aesni_intel
snd_pcm               102099  4 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
ablk_helper            13597  1 aesni_intel
cryptd                 20359  2 aesni_intel,ablk_helper
rt2800pci              13606  0 
rt2800mmio             20986  1 rt2800pci
rt2800lib              89076  2 rt2800pci,rt2800mmio
rt2x00pci              13287  1 rt2800pci
rt2x00mmio             13603  2 rt2800pci,rt2800mmio
snd_rawmidi            30144  2 snd_usbmidi_lib,snd_seq_midi
serio_raw              13462  0 
snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
binfmt_misc            17468  1 
rt2x00lib              55307  5 rt2x00pci,rt2800lib,rt2800pci,rt2800mmio,rt2x00mmio
joydev                 17381  0 
gspca_ov534            18860  0 
gspca_main             36692  1 gspca_ov534
mac80211              630728  3 rt2x00lib,rt2x00pci,rt2800lib
snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
videodev              134688  2 gspca_main,gspca_ov534
snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              29482  2 snd_pcm,snd_seq
cfg80211              484040  2 mac80211,rt2x00lib
lpc_ich                21080  0 
eeprom_93cx6           13344  1 rt2800pci
crc_ccitt              12707  1 rt2800lib
snd                    69322  23 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
soundcore              12680  1 snd
mei_me                 18627  0 
mei                    82276  1 mei_me
mac_hid                13205  0 
shpchp                 37032  0 
parport_pc             32701  0 
ppdev                  17671  0 
lp                     17759  0 
parport                42348  3 lp,ppdev,parport_pc
usb_storage            62209  0 
hid_generic            12548  0 
usbhid                 52659  0 
hid                   106148  2 hid_generic,usbhid
radeon               1522941  2 
i2c_algo_bit           13413  1 radeon
ttm                    93424  1 radeon
psmouse               106692  0 
drm_kms_helper         55071  1 radeon
r8169                  71677  0 
firewire_ohci          40409  0 
drm                   303102  4 ttm,drm_kms_helper,radeon
mii                    13934  1 r8169
firewire_core          68769  1 firewire_ohci
ahci                   34091  3 
libahci                32716  1 ahci
crc_itu_t              12707  1 firewire_core
wmi                    19177  0 
michelangeli@hp:~$

ferrari · 02-20-2016, 12:24 AM

The Network Manager CLI might be helpful here. To get started

Code:

nmcli n

Get overall NM control status. If necessary, enable using

Code:

nmcli n on

Code:

nmcli g

General status (wired, wireless, wwan etc)

Code:

nmcli d

Network devices managed by NM