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-rwxr-xr-xscripts/kvmd-udev-restart-pass49
1 files changed, 49 insertions, 0 deletions
diff --git a/scripts/kvmd-udev-restart-pass b/scripts/kvmd-udev-restart-pass
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+++ b/scripts/kvmd-udev-restart-pass
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+#!/bin/bash
+# ========================================================================== #
+# #
+# KVMD - The main PiKVM daemon. #
+# #
+# Copyright (C) 2018-2023 Maxim Devaev <[email protected]> #
+# #
+# This program is free software: you can redistribute it and/or modify #
+# it under the terms of the GNU General Public License as published by #
+# the Free Software Foundation, either version 3 of the License, or #
+# (at your option) any later version. #
+# #
+# This program is distributed in the hope that it will be useful, #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
+# GNU General Public License for more details. #
+# #
+# You should have received a copy of the GNU General Public License #
+# along with this program. If not, see <https://www.gnu.org/licenses/>. #
+# #
+# ========================================================================== #
+
+
+set -eE
+set -x
+
+# https://forums.raspberrypi.com/viewtopic.php?p=2202017
+
+card="$1"
+conn_id="$2"
+
+test -n "$card"
+test -n "$conn_id"
+
+card_n="${card/card/}"
+test -n "$card_n"
+
+port=$(grep "^connector\[$conn_id\]:" "/sys/kernel/debug/dri/$card_n/state" | awk '{print $1}')
+test -n "$port"
+
+
+if [ "$port" = "HDMI-A-1" ]; then
+ if systemctl is-enabled -q kvmd-pass; then
+ status=$(head -n 1 "/sys/class/drm/$card-$port/status")
+ if [ "$status" = "connected" ]; then
+ systemctl restart kvmd-pass || true
+ fi
+ fi
+fi