2023-07-11 12:20:34 +00:00
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#!/bin/bash
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2023-07-12 15:17:33 +00:00
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# SPDX-License-Identifier: MIT
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# Copyright (C) 2023-present Fewtarius (https://github.com/fewtarius)
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# Copyright (C) 2023-present christianhaitian (https://github.com/christianhaitian)
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# Copyright (C) 2023-present Rocky5 (https://github.com/rocky5)
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2023-07-11 12:20:34 +00:00
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# The purpose of this script is to permanently set the resolution
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# output for hdmi when connected.
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xres="$(cat /sys/class/graphics/fb0/modes | grep -o -P '(?<=:).*(?=p-)' | cut -dx -f1)"
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# drm_tool source available at https://github.com/christianhaitian/drm_tool.git
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mode="$(/usr/bin/drm_tool list | awk '/1280x720.*60/ {print substr($2,1,length($2)-1); exit}')"
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mode2="$(/usr/bin/drm_tool list | awk '/1920x1080.*60/ {print substr($2,1,length($2)-1); exit}')"
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# Now we tell drm what the hdmi mode is by writing to /var/run/drmMode
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# This will get picked up by SDL2 as long as it's been patched with the batocera
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# drm resolution patch. This patch can be found at
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# https://github.com/christianhaitian/rk3566_core_builds/raw/master/patches/sdl2-patch-0003-drm-resolution.patch
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if [ $xres -eq "1280" ]; then
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echo $mode | tee /var/run/drmMode
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elif [ $xres -eq "1920" ]; then
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echo $mode2 | tee /var/run/drmConn
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else
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echo 0 | tee /var/run/drmMode
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echo 1 | tee /var/run/drmConn
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fi
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