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(Created page with "=== Wlan Problems === Ubuntu Lucid / 10.04.1 I encountered some problems with my wlan and had some strange errors in '''dmesg''': === The first problem was: === iwl3945 0000:0...")
 
(Wlan Problems)
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=== Wlan Problems ===
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== Wlan Problems ==
 
Ubuntu Lucid / 10.04.1
 
Ubuntu Lucid / 10.04.1
  

Revision as of 21:36, 25 September 2010

Wlan Problems

Ubuntu Lucid / 10.04.1

I encountered some problems with my wlan and had some strange errors in dmesg:

The first problem was:

iwl3945 0000:03:00.0: Failed to get channel info for channel 100 [0]
iwl3945 0000:03:00.0: Failed to get channel info for channel 104 [0]
iwl3945 0000:03:00.0: Failed to get channel info for channel 108 [0]
iwl3945 0000:03:00.0: Failed to get channel info for channel 112 [0]

According to this opensuse bug i filed a solution in Ubuntu Bug #340418:

Add the following to a new file /etc/modprobe.d/options-iwl3945.conf:

options iwl3945 disable_hw_scan=0

For testing purpose do

rmmod -f iwl3945 && modprobe iwl3945 disable_hw_scan=0

The second problem was:

cfg80211: Leaving channel 5170 MHz intact on phy2 - no rule found in band on Country IE
cfg80211: Leaving channel 5180 MHz intact on phy2 - no rule found in band on Country IE
cfg80211: Leaving channel 5190 MHz intact on phy2 - no rule found in band on Country IE

This is a problem with the wlan setting with can easily solved by adding a script to Network Manager (according to [1] and [2]:

vim /etc/NetworkManager/dispatcher.d/01changeCRDA
#!/bin/sh
INTERFACE=$1
ACTION=$2
CODE="GB" 

if [ "$ACTION" = "up" -a "$(echo $INTERFACE|grep wlan)" ];then
       iw reg set ${CODE}
fi