On Wed, 2013-09-18 at 22:47 +0200, Detlev Casanova wrote:
> Hello,
>
> After a bisection on the kernel, it seems that a patch is causing a
> problem with NetworkManager:
>
> commit 0172bb75073e11a5aa9d8a953bdaefb8709f00c8 ("cfg80211:
> use DS or HT operation IEs to determine BSS channel")
>
> The Wifi access points are not listed in the KDE plasma widget and it
> won't even connect to the saved ones even if they are in range.
>
> There is a fix though: running "iwlist wlan0 scan" twice as root (which
> properly lists APs in reach) and the second time must be run about two
> seconds after the first time.
>
> Then NetworkManager lists the access points and connects to the
> prefered one if possible (normal behavior).
>
> This also happens with nm-applet in Gnome.
>
> The hardware is: 14e4:4315 (Network controller: Broadcom Corporation
> BCM4312 802.11b/g LP-PHY (rev 01)) on an Intel Core i3 M370 CPU (64
> bits) computer.
>
> The abnormal behaviour is not random, it happens every time.
Can you run wpa_supplicant with debugging output? The quick and dirty
way is to:
mv /usr/sbin/wpa_supplicant /
killall -TERM wpa_supplicant
/wpa_supplicant -dddtu
and then wait for the problem to happen, and grab the log output for us
to analyze.
Dan
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