Public bug reported:
Binary package hint: network-manager
release: 9.04
package version: *** 0.7.1~rc4.1.cf199a964-0ubuntu2
On my fujitsu u820, the wireless card kill switch does not work properly with
network-manager. When the switch is turned off, the wireless card and internal
bluetooth are turned off. However, when the switch is turned back on, only
bluetooth comes back on.
The issues are then, after the switch has been cycled once:
1) Network-manager disables itself and requires have "Enable Networking"
manually ticked back on.
2) "Enable Wireless" remains grayed out, regardless of the state of the kill
switch.
Playing with iwlist shows that wlan0 is set to down after the kill switch is
turned off. When it is turned back on, wlan0 remains down. Using ifconfig to
bring wlan0 up allows iwlist to use it, but network-manager still keeps "Enable
Wireless" grayed out.
Here is the output of sudo lspci -v for my wireless card
08:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network
Adapter (PCI-Express) (rev 01)
Subsystem: Fujitsu Limited. Device 147c
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at fd100000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0
Enable-
Capabilities: [60] Express Legacy Endpoint, MSI 00
Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [140] Virtual Channel <?>
Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath9k
Kernel modules: ath9k
I just quickly did some further testing and found out this. If the
switch is quickly cycled, network-manager will disconnect and then
reconnect to the wireless network with no issues. However, if I turn the
switch off and allow network-manager to reach the point where it
disables itself, the above happens.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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network-manager does not show wireless card after use of hardware/kill switch
https://bugs.launchpad.net/bugs/433661
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