Karin Chan

Fix Wireless Or Wired Network Not Working After Resume From Suspend In Ubuntu

<div style="text-align: justify;"><b>It's time for another fix, this time for wired / wireless network not working after resume from suspend</b>. In Ubuntu, sometimes when resuming from sleep, the wired network doesn't work and I keep getting "disconnected" notifications. I've read that some users are having similar issue with the wireless connection but for me, it's always the Ethernet connection.</div><br /><a name='more'></a><div style="text-align: center;"><a href="http://img.netupd8.com/network-ubuntu.png"><img alt="Ubuntu network" src="http://img.netupd8.com/network-ubuntu_thumb.png" /></a></div><br /><div style="text-align: justify;">So here's a fix that has worked for me, under Ubuntu 12.10 (but it probably works with other Ubuntu versions as well as other Linux distributions).</div><br /><br /><h2>Get the wired / wireless network to work after resume from suspend in Ubuntu</h2><br /><div style="text-align: justify;"><b>1.</b> <b>To fix the Ethernet / WiFi network not working after resume from suspend</b>, firstly, you must <b>find out the kernel module used by your network hardware</b>. The <a href="http://www.techytalk.info/ubuntu-fix-network-stopped-working-after-resume-from-sleep/">article</a> where I've found this fix suggests using the following command:</div><pre class="linux-code"><code>sudo lsmod</code></pre><br /><div style="text-align: justify;">and then trying to figure out which module is the one used by your network interface. But that's not so easy to do, so here's an easier way. Firstly, <b>install "lshw"</b>, a tool to list your computer hardware - in Ubuntu, install it using the following command:</div><pre class="linux-code"><code>sudo apt-get install lshw</code></pre><br />Then, to <b>list the network interfaces</b>, use the following command:<br /><pre class="linux-code"><code>sudo lshw -C network</code></pre><br />The command output should look more or less like this:<br /><pre class="source-code"><code>  *-network               <br />       description: Wireless interface<br />       product: Centrino Wireless-N 1030<br />       vendor: Intel Corporation<br />       physical id: 0<br />       bus info: pci@0000:03:00.0<br />       logical name: wlan0<br />       version: 34<br />       serial: 4c:85:93:2d:34:61<br />       width: 64 bits<br />       clock: 33MHz<br />       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless<br />       configuration: broadcast=yes <b>driver=iwlwifi</b> driverversion=3.5.0-22-generic firmware=18.168.6.1 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn<br />       resources: irq:51 memory:f3b00000-f3b01fff<br />  *-network<br />       description: Ethernet interface<br />       product: RTL8111/8168B PCI Express Gigabit Ethernet controller<br />       vendor: Realtek Semiconductor Co., Ltd.<br />       physical id: 0<br />       bus info: pci@0000:0a:00.0<br />       logical name: eth0<br />       version: 06<br />       serial: 00:e0:3c:64:00:08<br />       size: 100Mbit/s<br />       capacity: 1Gbit/s<br />       width: 64 bits<br />       clock: 33MHz<br />       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation<br />       configuration: autonegotiation=on broadcast=yes <b>driver=r8169</b> driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=192.168.0.130 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s<br />       resources: irq:53 ioport:2000(size=256) memory:f3004000-f3004fff memory:f3000000-f3003fff</code></pre><br /><div style="text-align: justify;">Depending on the network interface you're having problems with after resuming from suspend, look under "description: Wireless interface" (for WiFi obviously) or "description: Ethernet interface" (for wired network) and <b>under "configuration" you should see the kernel module used by that interface, as "driver="</b>, as you can see in the above example output (in bold). In my case, it's "r8169" (for RTL8111/8168B PCI Express Gigabit Ethernet controller).</div><br /><b>2.</b> The next step is to edit the <i>/etc/pm/config.d/unload_modules</i> file as root with a text editor:<br /><pre class="linux-code"><code>gksu gedit /etc/pm/config.d/unload_modules</code></pre><br />(the file may not exist in which case, an empty file will come up - that's ok)<br /><br />And inside this file, paste the following line:<br /><pre class="linux-code"><code>SUSPEND_MODULES="$SUSPEND_MODULES <b>MODULE_NAME_FOUND_UNDER_STEP_1</b>"</code></pre>replacing "MODULE_NAME_FOUND_UNDER_STEP_1" with the Kernel module name for your network interface found under step 1, "r8169" in my case.<br /><br />Example:<br /><pre class="source-code"><code>SUSPEND_MODULES="$SUSPEND_MODULES r8169"</code></pre><br /><div style="text-align: justify;">Then, save the file and that's it. Now even if the wireless / wired network wasn't working, if you set your computer to suspend, after resume the network should work.</div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">Note: tested on Ubuntu 12.10 64bit with a <a href="http://www.amazon.com/gp/product/B0052F35I2/ref=as_li_tf_tl?ie=UTF8&tag=weup07-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B0052F35I2">Dell XPS 17</a> L702X with Ethernet not working after resume from suspend. Not tested with Wireless because it always works after resume from suspend for me.</div><br /><div style="text-align: right;"><i>via <a href="http://www.techytalk.info/ubuntu-fix-network-stopped-working-after-resume-from-sleep/">techytalk.info</a></i></div>

Fix Wireless Or Wired Network Not Working After Resume From Suspend In Ubuntu

It's time for another fix, this time for wired / wireless network not working after resume from suspend . In Ubuntu, sometimes when resu...

<div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-9pOhHtKdBAY/T_wprbCVbPI/AAAAAAAAJQA/tbwXs6FcBgw/s1600/nitroshare_1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="nitroshare" border="0" height="139" src="http://4.bp.blogspot.com/-9pOhHtKdBAY/T_wprbCVbPI/AAAAAAAAJQA/tbwXs6FcBgw/s320/nitroshare_1.png" title="nitroshare" width="320" /></a></div><br /><div style="text-align: justify;"><b>NitroShare is an application that works on Linux and Windows which can be used to easily send files to other computers on the same local network. It supports drag'n'drop, sending folders, file compression, comes with Nautilus integration and more.</b></div><br /><a name='more'></a><div style="text-align: justify;">The application requires almost no configuration: simply install NitroShare on the machines you want to transfer files from/to, follow the initial configuration wizard (in which you basically don't have to change anything, just click "Next"), run it and <b>each machine should automatically discover all the other machines available on the LAN (obviously, NitroShare needs to be running on those computers)</b> and you can start sending files.</div><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-ROpyCf-d01U/T_wpxBBRkQI/AAAAAAAAJQI/xD0q-wMl6qQ/s1600/nitroshare_3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="nitroshare" border="0" height="250" src="http://4.bp.blogspot.com/-ROpyCf-d01U/T_wpxBBRkQI/AAAAAAAAJQI/xD0q-wMl6qQ/s320/nitroshare_3.png" title="nitroshare" width="320" /></a></div><br /><div style="text-align: justify;"><b>In Linux, you have three ways of sending files over the LAN network using NitroShare: using the tray icon / Ubuntu application indicator, from Nautilus by right clicking a file or folder and selecting "Send item with NitroShare" or using the so called "share boxes"</b>.</div><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://2.bp.blogspot.com/-R27t5dgsTgg/T_wqro_aGKI/AAAAAAAAJQQ/oRoPsBgW_5s/s1600/nitroshare_4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="nitroshare" border="0" height="288" src="http://2.bp.blogspot.com/-R27t5dgsTgg/T_wqro_aGKI/AAAAAAAAJQQ/oRoPsBgW_5s/s320/nitroshare_4.png" title="nitroshare" width="320" /></a></div><br /><div style="text-align: justify;">When running NitroShare, a "share box", which is basically a desktop widget, is displayed and when dragging and dropping files or folders onto it, a popup is displayed, asking you to select the target machine. You can right click the default share box (or select "Add Share Box" from the tray / application indicator) and select to create more share boxes for specific computers in your local network.</div><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-GPv8c5zD0Mg/T_wrBDgZikI/AAAAAAAAJQY/N4iySX4IPSc/s1600/nitroshare_5.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="nitroshare" border="0" height="259" src="http://4.bp.blogspot.com/-GPv8c5zD0Mg/T_wrBDgZikI/AAAAAAAAJQY/N4iySX4IPSc/s320/nitroshare_5.png" title="nitroshare" width="320" /></a></div><br /><div style="text-align: justify;">By default, the received files are saved on the Desktop but you can change this from the NitroShare settings dialog, along with other settings like the machine name. From the settings, you can also tweak some more advanced options, like: </div><ul><li>dynamic file compression during the transfer to decrease transfer time and reduce bandwidth</li><li>CRC chcksum generation to ensure file integrity</li><li>various network settings</li><li>option to automatically accept files (all or those that match a regular expression) and more.</li></ul><br /><br /><h2>Install NitroShare</h2><br /><div style="text-align: justify;">Like other applications we've been posting about these days, NitroShare was developed for the Ubuntu App Showdown and has been <b>recently labelled as stable by its developer with the <a href="https://launchpad.net/nitroshare/+announcement/10301">release</a> of version 0.2</b>, so it should work pretty well. Still, if you find bugs, report them @ <a href="https://bugs.launchpad.net/nitroshare">Launchpad</a>.</div><br /><div style="text-align: justify;"><b><a href="https://launchpad.net/nitroshare/+download">Download NitroShare 0.2 (stable)</a> - available as .deb, .rpm, Windows .exe for 32bit only for now, and source files.</b></div><div style="text-align: justify;"><br /></div><div style="text-align: justify;"><b>Ubuntu Quantal, Precise, Oneiric and Natty users can also install NitroShare by using its daily PPA</b>(the packages in the PPA are not considered stable):</div><pre class="linux-code"><code>sudo add-apt-repository ppa:george-edison55/nitroshare<br />sudo apt-get update<br />sudo apt-get install nitroshare</code></pre><br /><div style="text-align: justify;"><b>Arch Linux</b> users can install NitroShare via <a href="http://aur.archlinux.org/packages.php?ID=60326">AUR</a> (though it's not the latest version at the time I'm writing this).</div>

NitroShare: Easily Send Files To Other Machines On The Local Network [Linux, Windows]

NitroShare is an application that works on Linux and Windows which can be used to easily send files to other computers on the same local net...

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