Public bug reported:
After upgrading to Vivid, wifi wouldn't work tough cable connection is ok. I
have a Atheros AR946 adapter.
Switching back to upstart, however, seems to solve it completely. Systemd is
taking painfully long to start also, so maybe this indicates there is some
trouble with it.
Also, I have kernel 3.16 installed instead of 3.19, for some unknown reason.
This is taken while booted from systemd. I am on cable now.
kazeshi@kazeshi-ub:~$ uname -a
Linux kazeshi-ub 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
kazeshi@kazeshi-ub:~$ lspci | grep AR946
03:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter
(rev 01)
kazeshi@kazeshi-ub:~$ sudo lshw -C network
*-network
descrição: Interface sem fio
produto: AR9462 Wireless Network Adapter
fabricante: Qualcomm Atheros
ID físico: 0
informações do barramento: pci@0000:03:00.0
nome lógico: wlan0
versão: 01
serial: b0:10:41:ba:b9:5f
largura: 64 bits
clock: 33MHz
capacidades: pm msi pciexpress bus_master cap_list rom ethernet physical
wireless
configuração: broadcast=yes driver=ath9k driverversion=3.16.0-29-generic
firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
recursos: irq:18 memória:f7900000-f797ffff memória:f7980000-f798ffff
*-network
descrição: Ethernet interface
produto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabricante: Realtek Semiconductor Co., Ltd.
ID físico: 0.2
informações do barramento: pci@0000:04:00.2
nome lógico: eth0
versão: 0a
serial: 80:fa:5b:09:f3:9d
tamanho: 100Mbit/s
capacidade: 1Gbit/s
largura: 64 bits
clock: 33MHz
capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet
physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuração: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full firmware=rtl8411-1_0.0.3 06/18/12
ip=192.168.1.104 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
recursos: irq:43 porta de E/S:d000(tamanho=256)
memória:f2104000-f2104fff memória:f2100000-f2103fff
kazeshi@kazeshi-ub:~$ lsmod | grep ath
ath9k 136984 0
ath9k_common 25638 1 ath9k
ath9k_hw 450664 2 ath9k_common,ath9k
ath 29052 3 ath9k_common,ath9k,ath9k_hw
mac80211 660592 1 ath9k
cfg80211 510218 4 ath,ath9k_common,ath9k,mac80211
ath3k 13331 0
bluetooth 446190 12 bnep,hidp,ath3k,btusb,rfcomm
kazeshi@kazeshi-ub:~$ iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
kazeshi@kazeshi-ub:~$ ifconfig wlan0
wlan0 Link encap:Ethernet Endereço de HW b0:10:41:ba:b9:5f
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Apr 23 22:11:35 2015
InstallationDate: Installed on 2014-10-11 (194 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=pt_BR:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=pt_BR.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to vivid on 2015-04-23 (0 days ago)
VarLogDistupgradeTermlog:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 dist-upgrade systemd-boot vivid wifi
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https://bugs.launchpad.net/bugs/1447864
Title:
AR9462 wifi won't work after upgrade to vivid
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