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Merge pull request #56337 from mayflower/hidpi-console

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nixos-generate-config: add rudimentary high-DPI detection
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Linus Heckemann 2019-05-15 06:38:47 +02:00 committed by GitHub
commit 8ec48dcf6d
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15
nixos/modules/installer/tools/nixos-generate-config.pl
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@ -464,6 +464,21 @@ EOF
}
}
# For lack of a better way to determine it, guess whether we should use a
# bigger font for the console from the display mode on the first
# framebuffer. A way based on the physical size/actual DPI reported by
# the monitor would be nice, but I don't know how to do this without X :)
my $fb_modes_file = "/sys/class/graphics/fb0/modes";
if (-f $fb_modes_file && -r $fb_modes_file) {
my $modes = read_file($fb_modes_file);
$modes =~ m/([0-9]+)x([0-9]+)/;
my $console_width = $1, my $console_height = $2;
if ($console_width > 1920) {
push @attrs, "# High-DPI console";
push @attrs, 'i18n.consoleFont = lib.mkDefault "${pkgs.terminus_font}/share/consolefonts/ter-u28n.psf.gz";';
}
}
# Generate the hardware configuration file.