Wifi is disabled

[coppolino97]

Hi guys,
I need an help about this problem: I could not use wifi with my laptop. Before I have used it without problem.

I have tried to do this steps:
- reinstall iwlwifi
- check with RFKill and this is the output:

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rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: yes
2: dell-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: yes

So I decided to type

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rfkill unblock all

but the situation is always the same.

What can I do?

Thanks so much

[Head_on_a_Stick]

A hard block usually indicates that the hardware switch for the wireless is set off, consult the user manual if you don't know how to toggle that (or tell us the model in the hope that somebody is bored enough to look it up for you).

If you have already tried the hardware switch or are absolutely sure that there isn't one (this would be *very* unusual) then please post the full output of

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lspci -knn | grep -iA2 net
# lsmod

[coppolino97]

Hi, thanks for your help.

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lspci -knn | grep -iA2 net
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
	Subsystem: Dell 82579LM Gigabit Network Connection [1028:0532]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
--
02:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:422b] (rev 35)
	Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1121]
	Kernel driver in use: iwlwifi

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lsmod
Module                  Size  Used by
ebtable_filter         16384  0
ebtables               36864  1 ebtable_filter
ip6table_filter        16384  0
ip6_tables             28672  1 ip6table_filter
iptable_filter         16384  0
nls_utf8               16384  1
cifs                  684032  2
sha256_ssse3           32768  0
cmac                   16384  0
md4                    16384  0
des_generic            24576  0
dns_resolver           16384  1 cifs
fscache                61440  1 cifs
pci_stub               16384  1
vboxpci                24576  0
vboxnetadp             28672  0
vboxnetflt             28672  0
uvcvideo               90112  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         24576  1 uvcvideo
videobuf2_core         40960  2 uvcvideo,videobuf2_v4l2
videodev              176128  3 uvcvideo,videobuf2_core,videobuf2_v4l2
media                  40960  2 uvcvideo,videodev
vboxdrv               466944  3 vboxnetadp,vboxnetflt,vboxpci
binfmt_misc            20480  1
snd_hda_codec_hdmi     49152  1
intel_rapl             20480  0
x86_pkg_temp_thermal    16384  0
intel_powerclamp       16384  0
coretemp               16384  0
kvm_intel             192512  0
kvm                   593920  1 kvm_intel
irqbypass              16384  1 kvm
crct10dif_pclmul       16384  0
snd_hda_codec_idt      57344  1
crc32_pclmul           16384  0
snd_hda_codec_generic    69632  1 snd_hda_codec_idt
dell_wmi               16384  0
sparse_keymap          16384  1 dell_wmi
arc4                   16384  2
ghash_clmulni_intel    16384  0
intel_cstate           16384  0
iTCO_wdt               16384  0
iTCO_vendor_support    16384  1 iTCO_wdt
ppdev                  20480  0
iwldvm                139264  0
mac80211              671744  1 iwldvm
dell_laptop            20480  0
dell_smbios            16384  2 dell_wmi,dell_laptop
dcdbas                 16384  1 dell_smbios
dell_smm_hwmon         16384  0
intel_uncore          118784  0
intel_rapl_perf        16384  0
snd_hda_intel          36864  3
evdev                  24576  30
iwlwifi               151552  1 iwldvm
joydev                 20480  0
snd_hda_codec         135168  4 snd_hda_intel,snd_hda_codec_idt,snd_hda_codec_hdmi,snd_hda_codec_generic
serio_raw              16384  0
pcspkr                 16384  0
i915                 1257472  5
snd_hda_core           86016  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_idt,snd_hda_codec_hdmi,snd_hda_codec_generic
snd_hwdep              16384  1 snd_hda_codec
sg                     32768  0
cfg80211              589824  3 iwlwifi,mac80211,iwldvm
lpc_ich                24576  0
drm_kms_helper        155648  1 i915
mfd_core               16384  1 lpc_ich
snd_pcm               110592  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
drm                   360448  6 i915,drm_kms_helper
snd_timer              32768  1 snd_pcm
mei_me                 36864  0
snd                    86016  14 snd_hda_intel,snd_hwdep,snd_hda_codec,snd_hda_codec_idt,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_pcm
i2c_algo_bit           16384  1 i915
soundcore              16384  1 snd
shpchp                 36864  0
mei                   102400  1 mei_me
wmi                    16384  1 dell_wmi
battery                20480  0
parport_pc             28672  0
parport                49152  2 parport_pc,ppdev
dell_rbtn              16384  1
dell_smo8800           16384  0
video                  40960  3 dell_wmi,dell_laptop,i915
rfkill                 24576  3 dell_laptop,dell_rbtn,cfg80211
ac                     16384  0
button                 16384  1 i915
ip_tables              24576  1 iptable_filter
x_tables               36864  5 ip_tables,ebtables,iptable_filter,ip6table_filter,ip6_tables
autofs4                40960  2
ext4                  585728  1
crc16                  16384  1 ext4
jbd2                  106496  1 ext4
crc32c_generic         16384  0
fscrypto               28672  1 ext4
ecb                    16384  0
mbcache                16384  2 ext4
sd_mod                 49152  3
hid_generic            16384  0
usbhid                 53248  0
hid                   122880  2 hid_generic,usbhid
crc32c_intel           24576  2
aesni_intel           167936  1
aes_x86_64             20480  1 aesni_intel
glue_helper            16384  1 aesni_intel
lrw                    16384  1 aesni_intel
gf128mul               16384  1 lrw
ablk_helper            16384  1 aesni_intel
cryptd                 24576  3 ablk_helper,ghash_clmulni_intel,aesni_intel
psmouse               135168  0
ahci                   36864  2
libahci                32768  1 ahci
libata                249856  2 ahci,libahci
i2c_i801               24576  0
scsi_mod              225280  3 sd_mod,libata,sg
i2c_smbus              16384  1 i2c_i801
sdhci_pci              28672  0
sdhci                  45056  1 sdhci_pci
xhci_pci               16384  0
mmc_core              147456  2 sdhci,sdhci_pci
ehci_pci               16384  0
xhci_hcd              188416  1 xhci_pci
ehci_hcd               81920  1 ehci_pci
e1000e                249856  0
ptp                    20480  1 e1000e
usbcore               253952  6 uvcvideo,usbhid,ehci_hcd,xhci_pci,xhci_hcd,ehci_pci
pps_core               16384  1 ptp
usb_common             16384  1 usbcore
thermal                20480  0

Thanks for your support

[Head_on_a_Stick]

Try

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# rmmod dell_laptop

If that fixes things then disable the module permanently by adding a file at /etc/modprobe.d/dell.conf with the following content:

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blacklist dell_laptop

[scouser]

I have had the same problem with my Dell & HP laptop and this info below worked on both for me acpi=off being the problem



After a day long search and troubleshoot, I finally found a hack for all my problems. Since I used

acpi=off

in boot parameters, I didn't have battery status and those power management options. In some computers like mine it turns off the wifi also.

So instead of using acpi=off, another parameter has to be found out. This could depend on your system, but in my case no other parameter mentioned through out the net worked, thats why I installed with "acpi=off". But

acpi_osi=

replacing acpi=off will solve the problem, atleast in my case. Yes, There is nothing to the right of =.

Hope this will help someone in future.

[Head_on_a_Stick]

@scouser, does my suggestion work for you?

The dell_laptop module is not an uncommon source for this sort of problem, at least according to the various threads I found when searching.

EDIT: I'm a Wallaseyan btw