25 lines
624 B
Plaintext
25 lines
624 B
Plaintext
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#!/bin/bash
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# set system dpi to the minimal dpi among all connected monitors
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MIN_DPI=99999999
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# loop through all connected monitors line by line
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while IFS= read -r LINE; do
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WIDTH_PX=$(echo $LINE | grep -oP '\d+(?=x\d+)')
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[ -z "$WIDTH_PX" ] && continue
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WIDTH_MM=$(echo $LINE | grep -oP '\d+(?=mm x)')
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# calculate dpi of the monitor
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DPI=$(bc <<< "$WIDTH_PX*25.4/$WIDTH_MM")
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# update min dpi
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if [ "$DPI" -lt "$MIN_DPI" ]; then
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MIN_DPI=$DPI
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fi
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done <<< "$(xrandr | grep ' connected')"
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# update dpi
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echo setting dpi to $MIN_DPI
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echo Xft.dpi: $MIN_DPI | xrdb -merge
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nitrogen --restore
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