Re: WiFi interface disappeared
- From: Jim <kd1yv oneyv org>
- To: Dan Williams <dcbw redhat com>
- Cc: networkmanager-list gnome org
- Subject: Re: WiFi interface disappeared
- Date: Mon, 14 Sep 2015 19:12:47 -0400
Dan
On FC21, the dmesg | grep rtl returns nothing.
In contrast, I booted Ubuntu and ran the same commands, which clearly
show an 8192 (see below). Now how do I restore that device?
Thanks,
Jim
(From Ubuntu)
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor
Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset
Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset
Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset
Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset
Family PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset
Family PCI Express Root Port 3 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset
Family PCI Express Root Port 4 (rev b4)
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset
Family PCI Express Root Port 8 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset
Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC
Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset
Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family
SMBus Controller (rev 04)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
03:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)
Bus 002 Device 003: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 5986:03b3 Acer, Inc
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Module Size Used by
ctr 13049 2
ccm 17773 2
rfcomm 69160 8
bnep 19624 2
snd_hda_codec_hdmi 46368 1
snd_hda_codec_conexant 57486 1
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
videobuf2_core 40664 1 uvcvideo
videodev 134688 2 uvcvideo,videobuf2_core
snd_hda_intel 56531 3
snd_hda_codec 193017 3
snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep 13602 1 snd_hda_codec
arc4 12608 2
intel_rapl 18773 0
x86_pkg_temp_thermal 14205 0
intel_powerclamp 14705 0
coretemp 13435 0
snd_pcm 102099 3
snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
kvm_intel 143187 0
kvm 455843 1 kvm_intel
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
crct10dif_pclmul 14289 0
snd_seq_midi 13324 0
crc32_pclmul 13113 0
snd_seq_midi_event 14899 1 snd_seq_midi
ghash_clmulni_intel 13216 0
cryptd 20359 1 ghash_clmulni_intel
joydev 17381 0
snd_rawmidi 30144 1 snd_seq_midi
btusb 32412 0
serio_raw 13462 0
bluetooth 391136 22 bnep,btusb,rfcomm
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
thinkpad_acpi 81013 1
nvram 14411 1 thinkpad_acpi
rtl8192ce 53550 0
rtl_pci 26690 1 rtl8192ce
rtlwifi 63475 2 rtl_pci,rtl8192ce
rtl8192c_common 53172 1 rtl8192ce
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
mac80211 630728 3 rtl_pci,rtlwifi,rtl8192ce
snd_timer 29482 2 snd_pcm,snd_seq
snd 69322 18
snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device,snd_seq_midi
cfg80211 484040 2 mac80211,rtlwifi
i915 788212 3
mac_hid 13205 0
video 19476 1 i915
drm_kms_helper 55071 1 i915
drm 303102 4 i915,drm_kms_helper
mei_me 18627 0
lpc_ich 21080 0
mei 82276 1 mei_me
i2c_algo_bit 13413 1 i915
shpchp 37032 0
soundcore 12680 1 snd
parport_pc 32701 0
ppdev 17671 0
lp 17759 0
parport 42348 3 lp,ppdev,parport_pc
psmouse 106692 0
ahci 34091 1
sdhci_pci 23172 0
libahci 32716 1 ahci
r8169 71677 0
sdhci 43015 1 sdhci_pci
mii 13934 1 r8169
[ 18.494738] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
[ 18.621555] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 18.621815] rtlwifi: wireless switch is on
Jim$
Jim$
Jim$grep 8192 tmp/2dan
rtl8192ce 53550 0
rtl_pci 26690 1 rtl8192ce
rtlwifi 63475 2 rtl_pci,rtl8192ce
rtl8192c_common 53172 1 rtl8192ce
mac80211 630728 3 rtl_pci,rtlwifi,rtl8192ce
[ 18.494738] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
On 09/14/2015 06:16 PM, Dan Williams wrote:
On Mon, 2015-09-14 at 17:32 -0400, Jim wrote:
Dan
Thanks for replying. As I mentioned the WiFi on the same box runs fine
from Ubuntu or from Windows.
Here are the lspci and lsusb
Jim$lspci
...
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)
So you have a Realtek 8188CE device.
In addition, here is lsmod
Jim$lsmod
Module Size Used by
i915 958755 3
i2c_algo_bit 13250 1 i915
drm_kms_helper 93604 1 i915
crct10dif_pclmul 14307 0
crc32_pclmul 13133 0
crc32c_intel 22094 0
drm 300858 5 i915,drm_kms_helper
ghash_clmulni_intel 13230 0
r8169 71639 0
mii 13527 1 r8169
video 19825 1 i915
sunrpc 279333 1
This shows there is no kernel driver loaded for your device. Yes, r8169
is a realtek driver, but it's for ethernet devices not wifi. I'd expect
to see an rtl81xx (maybe rtl8192) or similar module. Next step is:
dmesg | grep rtl
and lets see what we get.
Dan
On 09/14/2015 03:17 PM, Dan Williams wrote:
On Mon, 2015-09-14 at 14:10 -0400, JimR wrote:
Fedora Core 21, KDE spin, all patches up to date.
Have run for many months using WiFi almost exclusively. Started using OpenVPN a couple of months ago with a
commercial VPN provider. (Not sure if that matters). That has worked fine.
Got notification from Apper that some packages needed updating, including kernel. Performed the update from
the Apper UI. I don't know if Networkmanager was in the list.
After reboot, WiFi no longer works, in fact, the whole WiFi interface has disappeared from ifconfig and from
the NetworkServices UI. I plugged in an ethernet cable, and it works fine. Machine is triple-boot, FC21, Win7
and Ubuntu LTS 14.04. WiFi works fine in Win and Ubu.
I tried re-adding the interface, wlp8s0 using the Connection Editor. Seemed happy, but it still won't start
nor list in ifconfig
If the device isn't listed in ifconfig the the kernel cannot see it, and
thus NetworkManager can't see it. It seems like there is either a
hardware problem with your wifi device, or the kernel has been updated
and no longer recognizes the wifi device. What is the output of 'lsusb'
and 'lspci' when those commands are run in a terminal on your machine?
Dan
I found this in the messages log around the time of the failure, but googling this does not produce any
meaningful help:
Sep 12 23:16:04 KD1YV1 NetworkManager[733]: <info> (wlp8s0): device state change: activated -> deactivating
(reason 'removed') [100 110 36]
Sep 12 23:16:04 KD1YV1 NetworkManager[733]: <info> NetworkManager state is now CONNECTED_LOCAL
Sep 12 23:16:04 KD1YV1 NetworkManager[733]: <info> (wlp8s0): device state change: deactivating -> unmanaged
(reason 'removed') [110 10 36]
Sep 12 23:16:04 KD1YV1 NetworkManager[733]: <info> (wlp8s0): deactivating device (reason 'removed') [36]
Help!
JimR
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