Displaylink: Difference between revisions

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===DisplayLink monitors===

In order to use DisplayLink monitors over USB, such as the ASUS MB16AC, the DisplayLink driver needs to be installed~~:<syntaxhighlight lang="nixos">~~

In order to use DisplayLink monitors over USB, such as the ASUS MB16AC, the DisplayLink driver needs to be installed.

~~services.xserver.videoDrivers = [ "displaylink" "modesetting" ];~~

~~</syntaxhighlight>The module <code>nixos/modules/hardware/video/displaylink.nix</code> should also work for wlroots compositors~~.

Since these drivers depend on binary unfree blobs, you will need to first add it to your Nix store.

~~When you try to use~~ <code>~~pkgs.~~displaylink</code> ~~in your nixos system, you will~~ get the instructions ~~printed to the stderr,~~ follow ~~those to prefetch the driver~~.

Run <code>nix-shell -p displaylink --arg config '{ allowUnfree = true; }'</code> to get the '''instructions and follow them'''.

~~Run~~ <code>nix~~-shell -p~~ displaylink ~~--arg config '{ allowUnfree~~ = ~~true~~; }'</code> ~~to get the instructions~~.

When you try to use <code>pkgs.displaylink</code> in your nixos system, you will get the same instructions printed to the stderr, follow those to prefetch the driver. Once the blob is in the Nix store you can add the package<syntaxhighlight lang="nix">

environment.systemPackages = with pkgs; [

displaylink

];

</syntaxhighlight>Then add the videoDrivers:<syntaxhighlight lang="nixos">services.xserver.videoDrivers = [ "displaylink" "modesetting" ];</syntaxhighlight>The module <code>nixos/modules/hardware/video/displaylink.nix</code> should also work for wlroots compositors.

====Connecting a second external monitor====

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Note as of [https://github.com/NixOS/nixpkgs/pull/351752 2024-10-30] nixos-unstable sway uses <code>wlroots_0_18</code>. The patch above applies correctly but you will need to invoke sway with the <code>--unsupported-gpu</code> flag.

[https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/1823#note_2146862 Source]

[[Category:Video]]

@@ Line 1: / Line 1: @@
 ===DisplayLink monitors===
-In order to use DisplayLink monitors over USB, such as the ASUS MB16AC, the DisplayLink driver needs to be installed:<syntaxhighlight lang="nixos">
+In order to use DisplayLink monitors over USB, such as the ASUS MB16AC, the DisplayLink driver needs to be installed.
-services.xserver.videoDrivers = [ "displaylink" "modesetting" ];
-</syntaxhighlight>The module <code>nixos/modules/hardware/video/displaylink.nix</code> should also work for wlroots compositors.
 Since these drivers depend on binary unfree blobs, you will need to first add it to your Nix store.
-When you try to use <code>pkgs.displaylink</code> in your nixos system, you will get the instructions printed to the stderr, follow those to prefetch the driver.
+Run <code>nix-shell -p displaylink --arg config '{ allowUnfree = true; }'</code> to get the '''instructions and follow them'''.
-Run <code>nix-shell -p displaylink --arg config '{ allowUnfree = true; }'</code> to get the instructions.
+When you try to use <code>pkgs.displaylink</code> in your nixos system, you will get the same instructions printed to the stderr, follow those to prefetch the driver. Once the blob is in the Nix store you can add the package<syntaxhighlight lang="nix">
+environment.systemPackages = with pkgs; [
+ displaylink
+];
+</syntaxhighlight>Then add the videoDrivers:<syntaxhighlight lang="nixos">services.xserver.videoDrivers = [ "displaylink" "modesetting" ];</syntaxhighlight>The module <code>nixos/modules/hardware/video/displaylink.nix</code> should also work for wlroots compositors.
 ====Connecting a second external monitor====
@@ Line 48: / Line 50: @@
 Note as of [https://github.com/NixOS/nixpkgs/pull/351752 2024-10-30] nixos-unstable sway uses <code>wlroots_0_18</code>. The patch above applies correctly but you will need to invoke sway with the <code>--unsupported-gpu</code> flag.
 [https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/1823#note_2146862 Source]
 [[Category:Video]]