Ubuntu
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  1. Bug #288401
  2. Comment #7

Comment 7 for bug 288401

Revision history for this message
Colin Watson (cjwatson) wrote : Re: iwl3945 driver doesn't see !US wireless channels on UK laptop [intrepid regression]

Release notes text added:

== Only US wireless channels enabled by default on Intel 3945 ==

The iwl3945 wireless driver defaults to the US regulatory domain for wireless, so wireless networks on channels forbidden by US regulations but permitted by European or Japanese regulations will not work out of the box. This affects IEEE 802.11b/g channels 12 (Europe and Japan), 13 (Europe and Japan), and 14 (Japan only), as well as all 802.11a channels. (Some other wireless drivers may be affected; this is the only one we are sure of so far.)

To work around this, add the following line to the `/etc/modprobe.d/options` file if you use this driver and need to use European wireless channels: {{{
options cfg80211 ieee80211_regdom=EU
}}}

Alternatively, add the following line if you use this driver and need to use Japanese wireless channels: {{{
options cfg80211 ieee80211_regdom=JP
}}}