[SOLVED] Conky and wlan0/eth0 if statement

kasl33 · 08-01-2011, 01:04 AM

(I'm thinking my issue may be a bug in this version of Conky...)

So I had a conky script that worked perfectly on Arch Linux. I had an "if" statement in effect so if I was using wireless internet, my wlan0 information would be displayed. If I was using eth0 instead, then eth0's information would be displayed. For some reason, this doesn't seem to work in Debian - even though if I "cat" the /sys/class/net/wlan0/operstate file, it clearly states either "up" or "down"

Does anybody have any ideas? Here is my conky configuration (stripped down for troubleshooting and only the important section included):

Code:

 Wireless Networking Section:

${if_existing /sys/class/net/wlan0/operstate up} # if the wlan0 interface is up...
wlan0 ${addr wlan0}
Inbound $alignr ${downspeed wlan0} kb/s
${downspeedgraph wlan0}
Outbound ${upspeed wlan0} kb/s
${upspeedgraph wlan0}
${else}

 Wired Networking Section:

${if_existing /sys/class/net/eth0/operstate up} 
eth0 ${addr eth0}
Inbound ${downspeed eth0} kb/s
${downspeedgraph eth0}
Outbound ${upspeed eth0} kb/s
${upspeedgraph eth0} 
${else}
${endif}
${endif}

corp769 · 08-01-2011, 09:28 AM

Hello,

Before you try to mess with the code before hand, have you compared the versions of conky on both OS's? I say that because it just might be a small bug depending on the versions that you have.

Cheers,

Josh

kasl33 · 08-01-2011, 03:39 PM

I was not able to see which version of Conky Arch uses.

Are any of you Arch users that just happened to be looking at this post able to tell us?

I believe running the following command will do this (here is my version on Debian):

Code:

conky -v

My output shows me I am running version 1.8.0.

corp769 · 08-01-2011, 03:44 PM

Well on your Debian machine, what exactly is outputted when your configuration is used?

kasl33 · 08-01-2011, 03:50 PM

Code:

cat /sys/class/net/wlan0/operstate
up

However the if statement doesn't seem to be working in Debian correctly...

corp769 · 08-01-2011, 03:50 PM

That's what I am asking man.... What exactly is happening?

kasl33 · 08-01-2011, 04:00 PM

Right now, I am using wlan0 which is clearly stating up in the operstate file. However, when conky refreshes, displays wlan0 for a split second, then goes back to eth0.

corp769 · 08-01-2011, 04:08 PM

Ahh ok. Within my conky config, I use the following:

Code:

${if_existing /proc/net/route wlan0}

Has been working without a hitch for me. Maybe try it out and let me know how that works?

kasl33 · 08-01-2011, 04:17 PM

Quote:

Originally Posted by corp769

Ahh ok. Within my conky config, I use the following:

Code:

${if_existing /proc/net/route wlan0}

Has been working without a hitch for me. Maybe try it out and let me know how that works?

Okay I tried that, and it still displays wrong. What version of conky are you using?

corp769 · 08-01-2011, 04:45 PM

Honestly I don't know, I don't have my laptop with me, and I am at my girlfriend's house. I am going back to my place either late tonight or tomorrow, if you care to wait until then.

kasl33 · 08-01-2011, 04:48 PM

I guess I'll keep waiting... possibly for a new version of conky. Or maybe I'll find it out of the tree and compile it. We'll see.

corp769 · 08-01-2011, 04:52 PM

Well the latest version is 1.8.1, if you care to install it and see

kasl33 · 08-01-2011, 05:53 PM

Which repository would I find it in? When I do a general apt-get upgrade it isn't showing any updates.

kasl33 · 08-01-2011, 05:59 PM

Oh, I just found out the strangest thing!

If I have:

Code:

if_existing /sys/class/net/eth0/operstate up

It displays wlan0

If I have

Code:

if_existing /sys/class/net/wlan0/operstate up

It eisplays eth0

This MUST be a bug, right? Again, it all worked fine in Arch Linux...

So whatever is happening, it is mixing up the interfaces. If I add a third interface (usb0 for tethering), it just gets all screwed up and ommits parts of the conky script.

I wonder if the program is interpreting if as !if

corp769 · 08-02-2011, 12:10 AM

Hmmm.... that is weird man. I do have one more trick up the sleeve for you to try.... Try using the following instead of if_existing:

Code:

${if_up wlan0}

I'm sure that will definitely work, since it is internal to conky, as far as detecting the network.