On Sun, 04 Mar 2012 01:13:12 +0800, lina wrote: > On Sun, Mar 4, 2012 at 12:38 AM, Camaleón <noela...@gmail.com> wrote: >> On Sat, 03 Mar 2012 23:29:45 +0800, lina wrote: >> >>> Once I disabled the wireless and plugged in the cable. >> >> How exactly did you disable the wireless? Was the ethernet cable >> already plugged at that time? Was eth0 up? > > There is some bars (which indicates the strength of the wireless), right > click there is disconnect option, so ...
Under which desktop environment, GNOME, KDE, XFCE...? Or put in other words, what aplication are you using to manage your wifi? > sometimes it didn't plug in, while sometimes it plugged in, not worked > (I felt the patience and retry plug in can get rewards at that > situation) , so I enabled the wireless again. I don't understand this paragraph in full, sorry :-( > I am not sure how to tell eth0 up or down. "/sbin/ifconfig eth0" and also "dmesg | grep -i eth0" >> What controls you networking stuff, "ifup" or "network-manager"? > $ dpkg --get-selections | grep network > gir1.2-networkmanager-1.0 install > glib-networking install > glib-networking-common install > glib-networking-services install > libqt4-network install > network-manager install > network-manager-gnome install Having network-manager installed does not mean it has to be used. Okay, let's take this as you're using NM :-) >> Anyway, check your "/etc/network/interfaces" for "allow-hotplug eth0" > > # more /etc/network/interfaces > > # The loopback network interface > auto lo > iface lo inet loopback > > # The primary network interface > allow-hotplug eth0 > iface eth0 inet dhcp Mmm, your eth0 is not being managed by NM unless you have told NM to do it otherwise... >> stanza. Also, review the messages with "tail -f /var/log/syslog" and > > wow, after disconnect the wireless, unplug the cable and replug the > cable, interesting scenario in syslog, Of course :-) > disconnected the wireless first and then plug in worked. > > but if it's already plugged in. disconnected the wireless, it's not so > sensitive. Can you see any event related to the network card? > How do the laptop examine whether there is cable connected or not? Again, "dmesg | grep -i eth0" will tell you even more interesting stuff ;-) Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/jitlic$q2j$1...@dough.gmane.org
