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Old 07-03-2014, 07:01 PM   #1
TheCobra
LQ Newbie
 
Registered: Jul 2013
Distribution: Debian Jessie, Crunchbang
Posts: 15

Rep: Reputation: Disabled
KDE/NetworkManager connection issue (Debian Jessie)


Recently, I installed Debian on an old disc that was lying around and put it in my desktop (which was all Windows up to that point in time, I run #! on my laptop). I installed a minimal Wheezy system, updated it to Jessie, then installed KDE with tasksel. It is much better than I remember it; they must have perfected it since the version that was installed with Wheezy when I tried it last nearly 2 years ago. The only problem I have is that the NetworkManager applet in the task bar complains about not finding a network to which to connect. Nothing happened when I made a network in the applet's GUI, it would not show up on the list of available connections. Because of this the auto-updater for apt failed and gave me a notification "can't connect to network, auto-update cache failed".

Things stopped making sense when I tried to uncover the problem. I could ping websites and update apt all I wanted with apper and console commands, I could even search for the issue online with Konqueror and Iceweasel. When running rfkill list, however, the ethernet interface doesn't appear. Running ip link and ifconfig show that the interface is up and is broadcasting.

So, the computer can connect, but certain parts of the system don't recognize it. I am sure this is a bug, but I am not sure which piece of the system to blame, or where to check for errors. I would love suggestions so I could potentially fix it or file a bug report.
 
Old 07-04-2014, 04:01 AM   #2
jdkaye
LQ Guru
 
Registered: Dec 2008
Location: Westgate-on-Sea, Kent, UK
Distribution: Debian Testing Amd64
Posts: 5,465

Rep: Reputation: Disabled
If you click on the tray icon of network-manager and then when it opens a window click on the wrench icon in the upper right-hand corned, what does it say? Is there an active connection listed? If so, what is the system name? (eth0? wlan0? something else?)
jdk
 
Old 07-04-2014, 12:39 PM   #3
TheCobra
LQ Newbie
 
Registered: Jul 2013
Distribution: Debian Jessie, Crunchbang
Posts: 15

Original Poster
Rep: Reputation: Disabled
There are no connections in either the list in applet or in the connection manager (wrench). After making a connection with the connection manager it still is not listed in the applet. I can even select my network interface (eth0) in the connection manager. Since the interface does not show with rfkill I am thinking the problem is deeper than the applet.
 
Old 07-04-2014, 11:24 PM   #4
jdkaye
LQ Guru
 
Registered: Dec 2008
Location: Westgate-on-Sea, Kent, UK
Distribution: Debian Testing Amd64
Posts: 5,465

Rep: Reputation: Disabled
Is it possible that you have more than one network manager installed? If you're not being connected to the internet via network-manager then you must be connected by something else.
jdk
 
Old 07-07-2014, 05:33 PM   #5
TheCobra
LQ Newbie
 
Registered: Jul 2013
Distribution: Debian Jessie, Crunchbang
Posts: 15

Original Poster
Rep: Reputation: Disabled
NetworkManager is installed and running correctly, and there is nothing in syslog that indicates any error. It even picks up and configures my eth0 ports for ifupdown. The only conclusion I can come to is it is a bug in plasma-nm. It is still odd it does not show up with rfkill. I also thought the problem could be with systemd as NM depends upon systemd libraries and services that are dependant upon systemd. I had my version held so that it would not try to replace sysvinit, but I updated anyway to see if it would work. It did not help.

I am going to place a bug report for plasma-nm and roll a lot of my system back to Wheezy to do a hybrid Wheezy/Jessie system. That is what runs on my laptop and I have never had any issue with it.
 
  


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