Ryan Lahfa
GitHub
commit
06541976aa
7 changed files with 67 additions and 80 deletions
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@ -248,10 +248,10 @@ In addition to numerous new and upgraded packages, this release has the followin
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[headscale's example configuration](https://github.com/juanfont/headscale/blob/main/config-example.yaml)
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can be directly written as attribute-set in Nix within this option.
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- `hardware.video.hidpi` now provides defaults that are consistent with `fontconfig`'s documentation:
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- antialiasing and font hinting are disabled, as they have no visible effects at high pixel densities;
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- subpixel order isn't set: it was irrelevant with the above disabled, and the module *cannot* know the correct
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setting for the user's screen.
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- The `hardware.video.hidpi.enable` was renamed to `fonts.optimizeForVeryHighDPI` to be consistent with what it actually does.
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They disable by default: antialiasing, hinting and LCD filter for subpixel rendering. They can be overridden if you experience problems with font rendering.
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On Xorg, the default cursor is upscaled.
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Please see the documentation for the new option to decide if you want to keep it enabled.
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- `nixos/lib/make-disk-image.nix` can now mutate EFI variables, run user-provided EFI firmware or variable templates. This is now extensively documented in the NixOS manual.
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@ -46,13 +46,11 @@ in
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font = mkOption {
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type = with types; nullOr (either str path);
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default = "Lat2-Terminus16";
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default = null;
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example = "LatArCyrHeb-16";
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description = mdDoc ''
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The font used for the virtual consoles. Leave empty to use
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whatever the {command}`setfont` program considers the
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default font.
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Can be either a font name or a path to a PSF font file.
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The font used for the virtual consoles.
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Can be `null`, a font name, or a path to a PSF font file.
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Use `null` to let the kernel choose a built-in font.
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The default is 8x16, and, as of Linux 5.3, Terminus 32 bold for display
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@ -3,29 +3,7 @@
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with lib;
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let
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# A scalable variant of the X11 "core" cursor
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#
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# If not running a fancy desktop environment, the cursor is likely set to
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# the default `cursor.pcf` bitmap font. This is 17px wide, so it's very
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# small and almost invisible on 4K displays.
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fontcursormisc_hidpi = pkgs.xorg.fontxfree86type1.overrideAttrs (old:
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let
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# The scaling constant is 230/96: the scalable `left_ptr` glyph at
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# about 23 points is rendered as 17px, on a 96dpi display.
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# Note: the XLFD font size is in decipoints.
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size = 2.39583 * config.services.xserver.dpi;
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sizeString = builtins.head (builtins.split "\\." (toString size));
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in
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{
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postInstall = ''
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alias='cursor -xfree86-cursor-medium-r-normal--0-${sizeString}-0-0-p-0-adobe-fontspecific'
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echo "$alias" > $out/lib/X11/fonts/Type1/fonts.alias
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'';
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});
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hasHidpi =
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config.hardware.video.hidpi.enable &&
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config.services.xserver.dpi != null;
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cfg = config.fonts;
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defaultFonts =
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[ pkgs.dejavu_fonts
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@ -36,16 +14,12 @@ let
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pkgs.noto-fonts-emoji
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];
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defaultXFonts =
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[ (if hasHidpi then fontcursormisc_hidpi else pkgs.xorg.fontcursormisc)
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pkgs.xorg.fontmiscmisc
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];
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in
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{
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imports = [
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(mkRemovedOptionModule [ "fonts" "enableCoreFonts" ] "Use fonts.fonts = [ pkgs.corefonts ]; instead.")
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(mkRenamedOptionModule [ "hardware" "video" "hidpi" "enable" ] [ "fonts" "optimizeForVeryHighDPI" ])
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];
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options = {
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@ -69,13 +43,32 @@ in
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'';
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};
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optimizeForVeryHighDPI = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Optimize configuration for very high-density (>200 DPI) displays:
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- disable subpixel anti-aliasing
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- disable hinting
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- automatically upscale the default X11 cursor
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'';
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};
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};
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};
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config = mkMerge [
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{ fonts.fonts = mkIf config.fonts.enableDefaultFonts defaultFonts; }
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{ fonts.fonts = mkIf config.services.xserver.enable defaultXFonts; }
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{ fonts.fonts = mkIf cfg.enableDefaultFonts defaultFonts; }
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(mkIf cfg.optimizeForVeryHighDPI {
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services.xserver.upscaleDefaultCursor = mkDefault true;
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# Conforms to the recommendation in fonts/fontconfig.nix
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# for > 200DPI.
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fonts.fontconfig = {
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antialias = mkDefault false;
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hinting.enable = mkDefault false;
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subpixel.lcdfilter = mkDefault "none";
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};
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})
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];
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}
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@ -1,25 +0,0 @@
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{ lib, pkgs, config, ...}:
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with lib;
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{
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options.hardware.video.hidpi.enable = mkEnableOption (lib.mdDoc "Font/DPI configuration optimized for HiDPI displays");
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config = mkIf config.hardware.video.hidpi.enable {
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console.font = lib.mkDefault "${pkgs.terminus_font}/share/consolefonts/ter-v32n.psf.gz";
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# Needed when typing in passwords for full disk encryption
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console.earlySetup = mkDefault true;
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boot.loader.systemd-boot.consoleMode = mkDefault "1";
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# Disable font anti-aliasing, hinting, and sub-pixel rendering by default
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# See recommendations in fonts/fontconfig.nix
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fonts.fontconfig = {
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antialias = mkDefault false;
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hinting.enable = mkDefault false;
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subpixel.lcdfilter = mkDefault "none";
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};
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# TODO Find reasonable defaults X11 & wayland
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};
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}
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@ -518,21 +518,6 @@ EOF
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}
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}
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# For lack of a better way to determine it, guess whether we should use a
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# bigger font for the console from the display mode on the first
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# framebuffer. A way based on the physical size/actual DPI reported by
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# the monitor would be nice, but I don't know how to do this without X :)
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my $fb_modes_file = "/sys/class/graphics/fb0/modes";
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if (-f $fb_modes_file && -r $fb_modes_file) {
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my $modes = read_file($fb_modes_file);
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$modes =~ m/([0-9]+)x([0-9]+)/;
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my $console_width = $1, my $console_height = $2;
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if ($console_width > 1920) {
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push @attrs, "# high-resolution display";
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push @attrs, 'hardware.video.hidpi.enable = lib.mkDefault true;';
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}
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}
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# Generate the hardware configuration file.
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@ -95,7 +95,6 @@
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./hardware/video/bumblebee.nix
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./hardware/video/capture/mwprocapture.nix
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./hardware/video/displaylink.nix
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./hardware/video/hidpi.nix
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./hardware/video/nvidia.nix
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./hardware/video/switcheroo-control.nix
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./hardware/video/uvcvideo/default.nix
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@ -138,6 +138,26 @@ let
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concatMapStringsSep "\n" (line: prefix + line) (splitString "\n" str);
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indent = prefixStringLines " ";
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# A scalable variant of the X11 "core" cursor
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#
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# If not running a fancy desktop environment, the cursor is likely set to
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# the default `cursor.pcf` bitmap font. This is 17px wide, so it's very
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# small and almost invisible on 4K displays.
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fontcursormisc_hidpi = pkgs.xorg.fontxfree86type1.overrideAttrs (old:
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let
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# The scaling constant is 230/96: the scalable `left_ptr` glyph at
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# about 23 points is rendered as 17px, on a 96dpi display.
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# Note: the XLFD font size is in decipoints.
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size = 2.39583 * cfg.dpi;
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sizeString = builtins.head (builtins.split "\\." (toString size));
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in
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{
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postInstall = ''
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alias='cursor -xfree86-cursor-medium-r-normal--0-${sizeString}-0-0-p-0-adobe-fontspecific'
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echo "$alias" > $out/lib/X11/fonts/Type1/fonts.alias
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'';
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});
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in
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{
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@ -576,6 +596,15 @@ in
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Whether to terminate X upon server reset.
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'';
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};
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upscaleDefaultCursor = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Upscale the default X cursor to be more visible on high-density displays.
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Requires `config.services.xserver.dpi` to be set.
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'';
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};
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};
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};
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@ -627,6 +656,10 @@ in
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+ "${toString (length primaryHeads)} heads set to primary: "
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+ concatMapStringsSep ", " (x: x.output) primaryHeads;
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})
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{
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assertion = cfg.upscaleDefaultCursor -> cfg.dpi != null;
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message = "Specify `config.services.xserver.dpi` to upscale the default cursor.";
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}
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];
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environment.etc =
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@ -851,6 +884,10 @@ in
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'';
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fonts.enableDefaultFonts = mkDefault true;
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fonts.fonts = [
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(if cfg.upscaleDefaultCursor then fontcursormisc_hidpi else pkgs.xorg.fontcursormisc)
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pkgs.xorg.fontmiscmisc
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];
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};
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