Public bug reported:
* Case 1:
Problem description: Some wifi drivers/chipsets get confused after a while and
will fall off the network and then fail to get on again with the normal network
manager probings. A root shell and modprobe -rv ipw2200; modprobe ipw2200
References: Windows provides a "repair device" choice in the tray
network icon which appears to remove and reinstall the driver
Suggested fix: A "repair network device" choice should be available
through network manager
* Case 2:
Problem description: RFKILL switch kills wifi driver permanently.
Suggested fix: See above for workaround. A setting somewhere to
automatically reinstall the wifi driver after unkill occurs would be
nice.
* Case 3:
Problem description: USB devices keeps Laptops from reaching low power states
for any significant time. My current laptop has a builtin 3G device and a
builtin bluetooth device. Both are on a USB bus. According to powertop these
rank among the top wake-up-causers on the system.
Suggested fix 1: powertop suggests "suspending usb". Not quite sure
what this entails but unloading the USB stack seems one likely solution.
A desktop device manager to do this would be nice.
Suggested fix 2: Powertop further suggests unloading the bluetooth and
3G device USB drivers. This normally requires root access and knowledge
of the driver names. This is a less drastic way to realize almost the
same goal as in fix1. A desktop widget is needed.
* Case 4:
... Once the desktop bus interface to manipulate the usb stack and wifi drivers
is realized it's not all that strange to supply a "rfkill" software switch in
the network manager applet that lets us do rfkill on the wifi and bluetooth but
keep the 3G device going for example.
Regards,
Nicolai
** Affects: ubuntu-meta (Ubuntu)
Importance: Undecided
Status: New
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Need to be able to controll some devices from GUI - power management and device
recovery
https://bugs.launchpad.net/bugs/322954
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