prompter: How can I switch to my DisplayLink monitor on boot? I am using Arch Linux with LightDM.

assistant: To switch to your DisplayLink monitor on boot, you need to configure your display manager to recognize the DisplayLink monitor as a valid display device. Since you're using LightDM, you'll need to modify the configuration file for LightDM to include the DisplayLink monitor.

Here's how you can do it:

Open the LightDM configuration file in a text editor with root privileges:

`sudo nano /etc/lightdm/lightdm.conf`

Scroll down to the [Seat:*] section of the file and add the following lines:

`display-setup-script=/usr/bin/xrandr --output <name-of-your-DisplayLink-monitor> --auto`
`greeter-setup-script=/usr/bin/xrandr --output <name-of-your-DisplayLink-monitor> --auto`

Replace <name-of-your-DisplayLink-monitor> with the actual name of your DisplayLink monitor as shown by the xrandr command.

For example, if the name of your DisplayLink monitor is DP-1, the lines should look like this:

`display-setup-script=/usr/bin/xrandr --output DP-1 --auto`
`greeter-setup-script=/usr/bin/xrandr --output DP-1 --auto`
Save and close the file.

Reboot your system and LightDM should automatically switch to the DisplayLink monitor during boot.

Note: If you have multiple DisplayLink monitors, you may need to add additional --output and --auto options to the xrandr commands to configure them properly.

prompter: Thank you

assistant: To switch to your DisplayLink monitor on boot in Arch Linux with LightDM, you can follow these steps:

1. Connect your DisplayLink monitor to your computer and make sure it is turned on.

2. Install the DisplayLink driver on your system using the following command:

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sudo pacman -S displaylink
Once the driver is installed, create a new file called displaylink.conf in the /etc/X11/xorg.conf.d/ directory using the following command:

bash
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sudo nano /etc/X11/xorg.conf.d/displaylink.conf
Add the following lines to the displaylink.conf file:

rust
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Section "Device"
    Identifier "DisplayLink"
    Driver "modesetting"
    Option "PageFlip" "false"
    Option "SwapbuffersWait" "false"
    Option "DRI" "3"
EndSection

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "DisplayLinkScreen"
EndSection

Section "Screen"
    Identifier "DisplayLinkScreen"
    Device "DisplayLink"
    Option "BlankTime" "300"
    Option "StandbyTime" "0"
    Option "SuspendTime" "0"
    Option "OffTime" "0"
    Option "DPI" "96x96"
    Option "PreferredMode" "1920x1080"
EndSection
Note: You may need to modify the Option "PreferredMode" line to match the resolution of your DisplayLink monitor.

3. Save the displaylink.conf file and exit the text editor.

4. Open the LightDM configuration file using the following command:

bash
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sudo nano /etc/lightdm/lightdm.conf
Add the following line to the [Seat:*] section of the lightdm.conf file:

arduino
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display-setup-script=/usr/bin/xrandr --output DisplayLink-0 --auto
Note: You may need to modify the --output parameter to match the name of your DisplayLink monitor.

5. Save the lightdm.conf file and exit the text editor.

6. Reboot your system to apply the changes.

After rebooting, your DisplayLink monitor should be automatically detected and enabled.

prompter: Too hard

assistant: I am not aware of any process which would be considerably simpler.

However, I could try to rephrase the instructions step-by-step, in a way which may be easier to follow.

Shall I do that?

assistant: It looks harder than it actually is. Try following my instructions step by step, and remember, I'm always here to help you!

assistant: There are a few ways to switch to DisplayLink on LightDM startup:

* Run `sudo cp ~/.config/monitors.xml /var/lib/lightdm/.config/` so the LightDM monitor configuration matches your logged in configuration.
*   Or, add the following to `/etc/lightdm/lightdm-gtk-greeter.conf`:
    ```
    [greeter]
    active-monitor=1
    ```
    Note that if you're using a different greeter besides `lightdm-gtk-greeter`, you'll need to edit the config for that greeter instead.
* Or, add `display-setup-script=xrandr --output DVI-X --primary` in `/etc/lightdm/lightdm.conf`, where DVI-X is the name of your DisplayLink monitor in xrandr.

Though these fixes work for most users, some users still encounter issues after trying all these options. In that case, installing a different window manager or disconnecting unused monitors may help.

prompter: Does this solution work when I have multiple DisplayLink monitors?