No Wifi on Xubuntu 12.04, Intel Centrino wireless-N 1000
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
Acer 1810 TZ; wifi was ok on my previous installation(Ubuntu 10.10).
Fresh install of Xubuntu 12.04, fully updated : cannot connect to my wifi network (Freebox V5)
I have seen here several bug reports that seem to challenge this chipset (centrino wireless-N), but nothing identical.
> https:/
> https:/
Within two hours of testing various (including deactivating wifi N), it hung the network twice for a few seconds (the password is then OK).
He will keep searching and asking for more network password regularly (WPA-TKIP).
As this bug affects (X)Ubuntu 12.04, it is not possible to use it on my laptop.
I have not found any workaround for this problem.
dmesg|grep iwl
[ 3.519565] iwlwifi 0000:02:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 3.519577] iwlwifi 0000:02:00.0: setting latency timer to 64
[ 3.519613] iwlwifi 0000:02:00.0: pci_resource_len = 0x00002000
[ 3.519617] iwlwifi 0000:02:00.0: pci_resource_base = ffffc9000067c000
[ 3.519621] iwlwifi 0000:02:00.0: HW Revision ID = 0x0
[ 3.519717] iwlwifi 0000:02:00.0: irq 44 for MSI/MSI-X
[ 3.519776] iwlwifi 0000:02:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[ 3.557500] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 3.577551] iwlwifi 0000:02:00.0: device EEPROM VER=0x15d, CALIB=0x6
[ 3.577557] iwlwifi 0000:02:00.0: Device SKU: 0X50
[ 3.577561] iwlwifi 0000:02:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3
[ 3.582693] iwlwifi 0000:02:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[ 4.018819] iwlwifi 0000:02:00.0: loaded firmware version 39.31.5.1 build 35138
[ 4.057470] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 4.346762] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 4.406942] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
Sea also joinged logs
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-firmware 1.79
ProcVersionSign
Uname: Linux 3.2.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Sun Aug 5 19:52:50 2012
Dependencies:
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitec
ProcEnviron:
LANGUAGE=fr:en
TERM=xterm
PATH=(custom, no user)
LANG=fr_FR.UTF-8
SHELL=/bin/bash
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
I finally found a workaround based on limiting wifi to mode wifi G.
In a terminal :
echo "options iwlwifi 11n_disable = 1" | sudo tee / etc / modprobe.d / iwlwifi.conf
sudo modprobe -rfv iwlwifi
sudo modprobe iwlwifi
Now, the wifi works, even if limited in speed.