Comment 136 for bug 193970

For me dmesg look like:

1. System booted. WLAN led lights on. Network manager discovers WLANs.

2. I press WLAN button WLAN led lights off.
3. Then I immidiately press it again.

WLAN led lights on. Network manager continue to discover WLANs.
dmesg looks like:
[ 101.771416] iwl3945: Radio Frequency Kill Switch is On:
[ 101.771420] Kill switch must be turned off for wireless networking to work.
[ 102.582424] Registered led device: iwl-phy0:radio
[ 102.582507] Registered led device: iwl-phy0:assoc
[ 102.582544] Registered led device: iwl-phy0:RX
[ 102.582578] Registered led device: iwl-phy0:TX

5. I can repeat steps 2-3 many times and it will works well.

6. But, if I try to repeat steps 2-3 in other way, but i wait for some time (about 5 seconds) beetween step 2 and step 3, and when i press WLAN button WLAN led turns off, but when i press it again it does not
turns back on again.
dmesg looks like:
[ 133.961713] iwl3945: Radio Frequency Kill Switch is On:
[ 133.961717] Kill switch must be turned off for wireless networking to work.
[ 134.954314] iwl3945: MAC is in deep sleep!
[ 134.954451] iwl3945: MAC is in deep sleep!
[ 134.954545] iwl3945: MAC is in deep sleep!
[ 134.961569] iwl3945 0000:05:00.0: PCI INT A disabled
and I can't work with WLANs