My wireless connection works after a cold boot then stops working after
a random amount of time. This problem is affecting me at least once a
day. The only fix I've found is to do a complete shutdown then a
subsequent cold boot. Strangely, simply restarting does not fix the
problem.
DETAILS:
Ubuntu 9.04 Jaunty Jackalope on a Toshiba Satellite L305-S5945.
$ lshw -C network
*-network
description: Wireless interface
product: AR242x 802.11abg Wireless PCI Express Adapter
vendor: Atheros Communications Inc.
[snip]
It is immediately noticeable when it happens because the NetworkManager
Applet 0.7.0.100 suddenly reports that it's trying to connect. After it
fails to reconnect it reports that the connection is unavailable. It
doesn't seem to matter whether I am using the wireless connection
heavily or not. The problem occurs during various levels of wireless
usage ranging from almost none (i.e. no windows open, laptop idling) to
heavy usage (i.e. active downloads, multiple open connections, etc.).
First repair attempt:
$ sudo ifconfig wlan0 down
$ sudo ifconfig wlan0 up
SCIOCSIFFLAGS Resource Temporarily Unavailable
The problem persists when I remove and re-add the ath5k module then try again.
$ sudo modprobe -r ath5k
$ sudo modprobe ath5k
$ sudo ifconfig wlan0 down
$ sudo ifconfig wlan0 up
SCIOCSIFFLAGS Resource Temporarily Unavailable
One website (http://www.vidarholen.net/contents/linuxtips/) suggests
that "SCIOCSIFFLAGS Resource Temporarily Unavailable" is caused by no
IRQ being assigned to the device. The suggested solution is to disable
"Plug-n-Play OS" in the BIOS. Unfortunately, my BIOS does not have this
option so I cannot confirm if this works.
I do not have linux-backports-modules-jaunty installed. I will install
it then update this thread if there are any resulting improvements.
--
Ath5k doesn't work anymore! SIOCSIFFLAGS: Resource temporarily unavailable
https://bugs.launchpad.net/bugs/299993
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