Thread: Wifi is not working even drivers are working properly

hi there


have installed ubuntu on dell laptop going on perfect have tried trouble shoot please check below commands output , let me know please if have make changes

]indira@ubuntu:~$ lsb_release -a
no lsb modules available.
distributor id: ubuntu
description: ubuntu 11.04
release: 11.04
codename: natty

indira@ubuntu:~$ sudo lshw -c network
[sudo] password indira:
*-network
description: wireless interface
product: centrino wireless-n 1000
vendor: intel corporation
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlan0
version: 00
serial: 00:26:c7:99:de:9a
width: 64 bits
clock: 33mhz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn driverversion=2.6.38-8-generic firmware=128.50.3.1 build 13488 latency=0 link=no multicast=yes wireless=ieee 802.11bgn
resources: irq:48 memory:f0400000-f0401fff
*-network
description: ethernet interface
product: rtl8111/8168b pci express gigabit ethernet controller
vendor: realtek semiconductor co., ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 06
serial: f0:4d:a2:54:bb:6a
size: 100mbit/s
capacity: 1gbit/s
width: 64 bits
clock: 33mhz
capabilities: pm msi pciexpress msix vpd bus_master cap_list 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=full ip=192.168.1.81 latency=0 link=yes multicast=yes port=mii speed=100mbit/s
resources: irq:41 ioport:5000(size=256) memory:f0a04000-f0a04fff memory:f0a00000-f0a03fff

indira@ubuntu:~$ sudo rfkill list
0: dell-wifi: wireless lan
soft blocked: no
hard blocked: no
1: phy0: wireless lan
soft blocked: no
hard blocked: no

indira@ubuntu:~$ lsmod
module size used
cryptd 20510 0 [/size][/font]
aes_x86_64 17208 0 [/size][/font]
aes_generic 38279 1 aes_x86_64 [/size][/font]
joydev 17606 0 [/size][/font]
]binfmt_misc 17565 1 [/size][/font]
parport_pc 36959 0 [/size][/font]
ppdev 17113 0 [/size][/font]
snd_hda_codec_hdmi 28103 1 [/size][/font]
snd_hda_codec_realtek 336693 1 [/size][/font]
arc4 12529 2 [/size][/font]
snd_hda_intel 33211 2 [/size][/font]
snd_hda_codec 103804 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel [/size][/font]
snd_hwdep 13604 1 snd_hda_codec [/size][/font]
snd_pcm 96625 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec [/size][/font]
snd_seq_midi 13324 0 [/size][/font]
snd_rawmidi 30486 1 snd_seq_midi [/size][/font]
iwlagn 333500 0 [/size][/font]
snd_seq_midi_event 14899 1 snd_seq_midi [/size][/font]
snd_seq 61621 2 snd_seq_midi,snd_seq_midi_event [/size][/font]
nouveau 682322 0 [/size][/font]
snd_timer 29602 2 snd_pcm,snd_seq [/size][/font]
snd_seq_device 14462 3 snd_seq_midi,snd_rawmidi,snd_seq [/size][/font]
i915 514985 8 [/size][/font]
uvcvideo 72195 0 [/size][/font]
videodev 82052 1 uvcvideo [/size][/font]
iwlcore 167503 1 iwlagn [/size][/font]
dell_wmi 12681 0 [/size][/font]
mac80211 294370 2 iwlagn,iwlcore [/size][/font]
psmouse 73535 0 [/size][/font]
dell_laptop 13827 0 [/size][/font]
sparse_keymap 13898 1 dell_wmi [/size][/font]
snd 67382 14 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,s nd_seq,snd_timer,snd_seq_device [/size][/font]
ttm 76664 1 nouveau [/size][/font]
cfg80211 178528 3 iwlagn,iwlcore,mac80211 [/size][/font]
dcdbas 14438 1 dell_laptop [/size][/font]
v4l2_compat_ioctl32 17078 1 videodev [/size][/font]
drm_kms_helper 42136 2 nouveau,i915 [/size][/font]
xhci_hcd 77643 0 [/size][/font]
soundcore 12680 1 snd [/size][/font]
serio_raw 13166 0 [/size][/font]
intel_ips 18097 0 [/size][/font]
drm 227495 6 nouveau,ttm,i915,drm_kms_helper [/size][/font]
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm [/size][/font]
i2c_algo_bit 13400 2 nouveau,i915 [/size][/font]
video 19438 2 nouveau,i915 [/size][/font]
lp 17825 0 [/size][/font]
parport 46458 3 parport_pc,ppdev,lp [/size][/font]
ahci 25951 1 [/size][/font]
r8169 48022 0 [/size][/font]
libahci 26642 1 ahci [/size][/font]

indira@ubuntu:~$ lsusb [/size][/font]
bus 003 device 001: id 1d6b:0003 linux foundation 3.0 root hub [/size][/font]
bus 002 device 002: id 8087:0020 intel corp. integrated rate matching hub [/size][/font]
bus 002 device 001: id 1d6b:0002 linux foundation 2.0 root hub [/size][/font]
bus 001 device 003: id 0408:2fb1 quanta computer, inc. [/size][/font]
bus 001 device 002: id 8087:0020 intel corp. integrated rate matching hub [/size][/font]
bus 001 device 001: id 1d6b:0002 linux foundation 2.0 root hub [/size][/font]

indira@ubuntu:~$ lspci[/size][/font]
00:00.0 host bridge: intel corporation core processor dram controller (rev 18) [/size][/font]
00:01.0 pci bridge: intel corporation core processor pci express x16 root port (rev 18) [/size][/font]
00:02.0 vga compatible controller: intel corporation core processor integrated graphics controller (rev 18) [/size][/font]
00:16.0 communication controller: intel corporation 5 series/3400 series chipset heci controller (rev 06) [/size][/font]
00:1a.0 usb controller: intel corporation 5 series/3400 series chipset usb2 enhanced host controller (rev 06) [/size][/font]
00:1b.0 audio device: intel corporation 5 series/3400 series chipset high definition audio (rev 06) [/size][/font]
00:1c.0 pci bridge: intel corporation 5 series/3400 series chipset pci express root port 1 (rev 06) [/size][/font]
00:1c.1 pci bridge: intel corporation 5 series/3400 series chipset pci express root port 2 (rev 06) [/size][/font]
00:1c.3 pci bridge: intel corporation 5 series/3400 series chipset pci express root port 4 (rev 06) [/size][/font]
00:1c.4 pci bridge: intel corporation 5 series/3400 series chipset pci express root port 5 (rev 06) [/size][/font]
00:1c.5 pci bridge: intel corporation 5 series/3400 series chipset pci express root port 6 (rev 06) [/size][/font]
00:1d.0 usb controller: intel corporation 5 series/3400 series chipset usb2 enhanced host controller (rev 06) [/size][/font]
00:1e.0 pci bridge: intel corporation 82801 mobile pci bridge (rev a6) [/size][/font]
00:1f.0 isa bridge: intel corporation mobile 5 series chipset lpc interface controller (rev 06) [/size][/font]
00:1f.2 sata controller: intel corporation 5 series/3400 series chipset 6 port sata ahci controller (rev 06) [/size][/font]
00:1f.3 smbus: intel corporation 5 series/3400 series chipset smbus controller (rev 06) [/size][/font]
00:1f.6 signal processing controller: intel corporation 5 series/3400 series chipset thermal subsystem (rev 06) [/size][/font]
02:00.0 vga compatible controller: nvidia corporation device 0df1 (rev a1) [/size][/font]
04:00.0 network controller: intel corporation centrino wireless-n 1000 [/size][/font]
05:00.0 usb controller: nec corporation upd720200 usb 3.0 host controller (rev 03) [/size][/font]
09:00.0 ethernet controller: realtek semiconductor co., ltd. rtl8111/8168b pci express gigabit ethernet controller (rev 06) [/size][/font]
ff:00.0 host bridge: intel corporation core processor quickpath architecture generic non-core registers (rev 05) [/size][/font]
ff:00.1 host bridge: intel corporation core processor quickpath architecture system address decoder (rev 05) [/size][/font]
ff:02.0 host bridge: intel corporation core processor qpi link 0 (rev 05) [/size][/font]
ff:02.1 host bridge: intel corporation core processor qpi physical 0 (rev 05) [/size][/font]
ff:02.2 host bridge: intel corporation core processor reserved (rev 05) [/size][/font]
ff:02.3 host bridge: intel corporation core processor reserved (rev 05) [/size][/font]

indira@ubuntu:~$
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thank you
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network manager designed disallow wireless connection if have wired connected. do:

driver=r8169 driverversion=2.3lk-napi duplex=full ip=192.168.1.81

disconnect cable, wait few moments , click network manager icon. see wireless networks? can click yours , connect?

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Networking & Wireless [ubuntu] Wifi is not working even drivers are working properly

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