Public bug reported:
This is a Lenovo IdeaPad S206.
Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN
Controller (rev 01)
Current behavior is:
WiFi will operate pretty well -- quite stable.
Then I suspend the system, move to another WiFi hotspot, and wake the system up.
It will see the other hotspot, but keep prompting me for a password which it
already has.
This happens about half the time... In fact, maybe exactly half the time I wake
the system up.
I have also seen it happen when the system is shut down and re-started.
It will never again authenticate once it gets into this state.
Work-around:
Hardware reset: shut system down, hold power button while the splash-screen is
displayed, until the machine shuts down (about 5 sec.)
Then re-start. Voilà, WiFi authenticates and works fine, until the problem
occurs again.
History:
WiFi on this machine has always been problematic. It did not function after a
clean install of the system.
(For all I know, it was already the inconsistent state problem.)
I had to fiddle around a great deal to get it working even this well...
Also:
The same system running off a stick with Ubuntu 13.04 Beta is *unusably* flaky
regarding WiFi.
----------------------------------------------------------
$ lsmod |grep wl
wl 2906499 0
cfg80211 175574 1 wl
lib80211 14041 2 lib80211_crypt_tkip,wl
How can we debug this?
(How to look directly at the WiFi hardware state?)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1171145
Title:
Broadcom WiFi left in inconsistent state after suspend, shutdown in
12.10
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