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diff --git a/drafts/dell-dock.html b/drafts/dell-dock.html deleted file mode 100644 index 4a9dd9a..0000000 --- a/drafts/dell-dock.html +++ /dev/null @@ -1,102 +0,0 @@ -<h1>Make Your Docking Station Work for You (on FreeBSD)</h1> - -<p class="description"> - I have a Dell Latitude E-series laptop running FreeBSD 12.2-RELEASE. I also - have a Dell E-Port II docking station on my desk. I wanted to be able to take - my shut, sleeping laptop and plop it down on the docking station, hit the dock - power button, and have the laptop wake up and switch over to all of the - docking station peripherals. So I did it! And now I'm going to write about it - so I don't forget how. You need to know a little bit about FreeBSD - <code>sysctl</code> knobs, display outputs in X, sound devices, and - <code>ifconfig</code> networking. -</p> - -<h2>Switching from Ethernet to WiFi and Back Again, Seamlessly</h2> - -<p> - FreeBSD doesn't magically swap from wireless to wired connections by default, - but there's an easy way to remedy this: link failover. I recommend reading the - <a href="https://www.freebsd.org/doc/handbook/network-aggregation.html" - >FreeBSD handbook page on network aggregation</a - > - as it's where I found out about link aggregation and failover. Basically, - aggregation lets you bind two of your network interfaces together into a - single virtual interface. Failover lets your traffic continue moving as long - as one of the aggregated interfaces has is connected. - Here's what I had to do: -</p> - -<ol> - <li> - Bind the wireless network interface (wlan0) to the MAC address of the wired - interface (em0) - </li> - <li>Create a lagg interface using the two network interfaces</li> - <li>Bind the lagg interface to an IP address, preferably with DHCP</li> -</ol> - -<p>All of this is configured in my <code>rc.conf</code>:</p> - -<pre><code> -wlans_iwn0="wlan0" # <- wlan0 device should use the iwn driver -ifconfig_wlan0="WPA" # <- wlan0 should use WPA (wpa_supplicant) to connect to wireless SSIDs -create_args_wlan0="wlanaddr 5c:26:0a:06:c1:d6" # <- wlan0 MAC address is set to em0 device MAC address -ifconfig_em0="up" # <- enable em0 (ethernet) device -cloned_interfaces="lagg0" # <- create cloned interface lagg0 -ifconfig_lagg0="up laggproto failover laggport em0 laggport wlan0 DHCP" # <- configure lagg0 interface to act as a failover lagg protocol over em0 and wlan0 -</code></pre> - -<p> - In practice, the preferred device is <code>em0</code>, or my ethernet NIC. - FreeBSD will always try to use that first. If it's disconnected, such as when - the laptop is removed from the dock, the wireless device (<code>wlan0</code>) - will take over. This transition happens instantly, and without interrupting - traffic; active transactions aren't cut short for example. -</p> - -<h2>Sleeping on Lid Close Except When Docked</h2> - -<p> - This is an easy one. You can use <code>sysctl</code> to configure what happens - when a laptop lid is closed. I wanted the lid closing while undocked to - suspend (put the laptop to sleep). When it's docked however, I don't use the - internal display and wanted to be able to shut the lid and leave it shut. If you read <code>ACPI(4)</code> in the manual, you'll find this little passage: -</p> - -<pre> -<blockquote> -hw.acpi.lid_switch_state - Suspend state (S1-S5) to enter when the lid switch (i.e., a - notebook screen) is closed. Default is "NONE" (do nothing). -</blockquote> -<pre> - -<p>I changed this value a long time ago so closing the lid suspends the laptop. You can check with <code>sysctl</code>:</p> - -<pre> -<code> -$ sysctl hw.acpi.lid_switch_state -hw.acpi.lid_switch_state: S3 -</code> -</pre> - -<p>Now, if I wanted to disable this functionality, I would just change this parameter as root:</p> - -<pre> -<code> -$ doas sysctl hw.acpi.lid_switch_state=NONE -hw.acpi.lid_switch_state: NONE -> NONE -</code> -</pre> - -This change takes effect immediately. I can open and close the lid and nothing happens but turning off the screen. Awesome. - -<h2>Swapping Primary Display Outputs (Also Nvidia Screen-Tearing)</h2> - -<h2>Switching Default Sound Device</h2> - -<h2>Putting It All Together (Scripts Are Glue)</h2> - -<h2>What I Didn't Have to Do</h2> - -usb devices, battery/charging |