mirror of
https://github.com/vincentbernat/i3wm-configuration.git
synced 2025-07-08 17:24:21 +02:00
46 lines
1.5 KiB
Bash
Executable file
46 lines
1.5 KiB
Bash
Executable file
#!/bin/sh
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DISPLAY=${DISPLAY%.0}
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# For information
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xrandr --current \
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| sed -n 's/^\([^ ]\{1,\}\)* connected.* \([0-9]\{1,\}\)x.* \([0-9]\{1,\}\)mm x .*/\1 \2 \3/p' \
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| while read output pixels mm; do
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dpi=$(($pixels * 254 / 10 / $mm))
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# For laptop screens, we need to apply a correction factor
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case $output in
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eDP-1|eDP1) corrected=$(($dpi * 96/144)) ;;
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*) corrected=$dpi
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esac
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# Authorized factors: 1, 1.5, 2, 3, 4, ...
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rounded=$(((corrected + 24) / 48 * 48))
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[ $rounded -gt 192 ] && rounded=$(((corrected + 48) / 96 * 96))
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[ $rounded -lt 96 ] && rounded=96
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echo "$output: ${dpi}dpi (corrected to ${corrected}dpi, rounded to ${rounded}dpi)" >&2
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done
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# Don't try to guess DPI. For a laptop, we don't want the same DPI as
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# for an external screen. Just hardcode stuff...
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case $(hostname),$(autorandr --current) in
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zoro,default) dpi=144 ;;
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guybrush,default) dpi=144 ;;
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neo,*) dpi=192 ;;
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*,*) dpi=96 ;;
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esac
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xrandr --dpi $dpi
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# Build xsettingsd.local
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{
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cat ~/.config/awesome/xsettingsd
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echo Xft/DPI $(( $1*1024 ))
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echo Xft/RGBA \"$( [ $1 -gt 144 ] && echo none || echo rgb )\"
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echo Gdk/WindowScalingFactor $(( $1/96 ))
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echo Gdk/UnscaledDPI $(( $1*1024/($1/96) ))
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} > ~/.xsettingsd
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# Signal xsettingsd
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systemctl --user reload xsettingsd@$(systemd-escape -- "$DISPLAY").service
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# Also use xrdb for very old stuff (you know, LibreOffice)
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echo Xft.dpi: $dpi | xrdb -merge
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