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Thread: How to refresh available wireless networks list in nm applet?

  1. #1
    Join Date
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    Ubuntu 12.04 Precise Pangolin

    Smile How to refresh available wireless networks list in nm applet?

    Is there a way I can refresh the list of available wireless networks in the network manager applet? It works correctly when I've just booted but doesn't after I resume after suspending. There's just a message like "wireless networks not available".

    I can assure you that the wi-fi is not disabled using a button (my laptop doesn't have such a button), "Fn" key combination or in any other way and the network doesn't go down when I need it.

  2. #2
    Join Date
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    Re: How to refresh available wireless networks list in nm applet?

    Often, the real cause is that the wireless driver doesn't reload when the computer comes out of suspend/hibernate/cryo-freeze. You can try to simply reload the driver in a terminal:
    Code:
    sudo rmmod <driver>
    sudo modprobe <driver>
    Find out the driver in:
    Code:
    sudo lshw -C network
    Here is a snip from my machine:
    Code:
    description: Wireless interface
           product: PRO/Wireless 3945ABG [Golan] Network Connection
           vendor: Intel Corporation
           logical name: wlan0
           version: 02
           configuration: broadcast=yes driver=iwl3945 driverversion=2.6.38-8-generic firmware=15.32.2.9 ip=192.168.1.111 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
           resources: irq:47 memory:edf00000-edf00fff
    In some cases, but not all, it helps to write a little file to ask the system to reload the driver:
    Code:
    sudo gedit /etc/pm/config.d/config
    Add one line:
    Code:
    SUSPEND_MODULES="iwl3945"
    Proofread carefully, save and close gedit. It may take a reboot in order to restart all the dependent systems. Of course, substitute your driver here.

    Post back so the searchers will learn from your experience. If you get stuck, post back.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  3. #3
    Join Date
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    Smile Re: How to refresh available wireless networks list in nm applet?

    Well I've tried the commands.

    rmmod deletes the wireless networks part from the nm-applet.
    modprobe was probably supposed to bring it back, but it didn't.

    I've now created the file /etc/pm/config.d/config.
    Let's see how that works out.

    PS.

    There's another new thread about the same thing.

  4. #4
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    Smile Re: How to refresh available wireless networks list in nm applet?

    Yeah, creating the file did sort out the problem.
    Thanks a lot.

  5. #5
    Join Date
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    Re: How to refresh available wireless networks list in nm applet?

    Glad it's working. Please use the thread tools at the top to Mark Solved. This will help the searchers.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  6. #6
    Join Date
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    Hidden!
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    Ubuntu

    Re: How to refresh available wireless networks list in nm applet?

    Quote Originally Posted by chili555 View Post
    ...Please use the thread tools at the top to Mark Solved. This will help the searchers.
    Got that for you...
    Linux User #415691 Ubuntu User #8629
    Iowa Team (LoCo): [Wiki] [Launchpad]
    IRC channel: #ubuntu-us-ia on irc.freenode.net

  7. #7
    Join Date
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    Wink Re: How to refresh available wireless networks list in nm applet?

    Quote Originally Posted by Iowan View Post
    Got that for you...
    Thanks.

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