Public bug reported: Using Hardy and linux-backports-modules-hardy, see attached for modinfo.
With NetworkManager running, using iwconfig results in: $ sudo iwconfig wlan0 mode ad-hoc essid mynetwork channel 10 Error for wireless request "Set Mode" (8B06) : SET failed on device wlan0 ; Device or resource busy. After disabling wireless in NM, or killing it, I get: $ sudo iwconfig wlan0 mode ad-hoc channel 10 essid mynetwork Error for wireless request "Set Frequency" (8B04) : SET failed on device wlan0 ; Input/output error. Separately: iwconfig wlan0 mode ad-hoc # <-- works After that, setting essid or channel both fail with the same error above. iwevent shows the mode change, but not channel or essid change. 'ifconfig' does not show wlan0. 'ifconfig wlan0' shows: $ ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr 00:19:d2:5e:56:34 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:576 (576.0 B) Gutsy (which had ipw3945) worked fine with this network setup. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- iwl3945 can't set parameters for ad-hoc network https://bugs.launchpad.net/bugs/222302 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs