Ubuntu 10.4 nao detecta redes sem fio

[fabreder]

Pelo que andei vendo e estudando, esse meu problema é recorrente:

https://bugzilla.kernel.org/show_bug.cgi?id=13900

Parece que essa placa Atheros, após durmir não acorda mais!
O sistema não consegue mais obter seu endereço e não ativa.

Basta ver parte do log após despertar da suspensão:


Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (wlan0): now managed
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (wlan0): device state change: 1 -> 2 (reason 2)
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (wlan0): bringing up device.
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (wlan0): deactivating device (reason: 2).
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (eth0): now managed
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (eth0): device state change: 1 -> 2 (reason 2)
Oct 22 13:48:38 tavares-laptop NetworkManager: <info>  (eth0): bringing up device.
Oct 22 13:48:38 tavares-laptop kernel: [  120.174294] ath5k phy0: failed to wakeup the MAC Chip
Oct 22 13:48:38 tavares-laptop kernel: [  120.174302] ath5k phy0: can't reset hardware (-5)