나는 마침내이 작업을 사용하여 관리했습니다 udev. 누군가가 같은 행동을 원한다면 다음 단계를 따르십시오.

먼저 /etc/udev/rules.d/hdmi_sound.rules다음과 같은 내용 으로 파일을 만들어야합니다 .

    SUBSYSTEM=="drm", ACTION=="change", RUN+="/usr/local/bin/hdmi_sound_toggle"

HDMI 연결이 변경 될 때마다 udev스크립트 를 실행합니다 hdmi_sound_toggle. 해당 스크립트에는 실행 권한이 있어야하며 내용은 다음과 같습니다.

#!/usr/bin/env python

import subprocess
from syslog import syslog

def output(cmd):
    return subprocess.check_output(cmd, shell=True)

# the following variables may need some modification.
user = "my_username"
card = "/sys/class/drm/card0"
dev_speaker = "output:analog-stereo+input:analog-stereo"
dev_hdmi = "output:hdmi-stereo+input:analog-stereo"
#

interfaces = output("ls {0}".format(card), ).split("\n")

vga = filter(lambda x: "VGA" in x, interfaces)[0]
hdmi = filter(lambda x: "HDMI" in x, interfaces)[0]

syslog("HDMI connection was changed!")

hdmi_connected = output("cat {0}/{1}/status".format(card,hdmi)).startswith("connected")
title = "HDMI was {0}".format("connected" if hdmi_connected else "disconnected")
message = "Audio output has changed to {opt}.".format(opt = "HDMI" if hdmi_connected else "built-in speakers")

cmd = "sudo -u " + user + " /usr/bin/pactl set-card-profile 0 " + (dev_hdmi if hdmi_connected else dev_speaker)

syslog("HDMI was connected." if hdmi_connected else "HDMI was disconnected.")
try:
    a = output(cmd)
    output("sudo -u {0} notify-send \"{1}\" \"{2}\"".format(user, title, message))
    syslog("Audio output changed.")
except Exception as ex:
    syslog("Error changing output device: " + str(ex))

아마도 이것은 bash에서 쉽게 만들 수 있지만 내 주요 언어는 파이썬이므로 사용했습니다. 알림을 제외한 모든 것이 작동합니다. 표시되지 않습니다. 이유를 모르겠습니다. 누군가 고치는 방법을 알고 있다면 무언가를 말하십시오.

참고 : script / udev 규칙의 이름은 변경할 수 있지만 전체 경로를 사용해야합니다.

답변

SUBSYSTEM=="drm", RUN+="/usr/local/bin/hdmi_sound_toggle"

#!/bin/sh
USER_NAME=`who | grep "(:0)" | cut -f 1 -d ' '| sort -u`
USER_ID=`id -u $USER_NAME`
HDMI_STATUS=`cat /sys/class/drm/card0/*HDMI*/status`

export PULSE_SERVER="unix:/run/user/"$USER_ID"/pulse/native"

if [ $HDMI_STATUS = "connected" ]
then
    sudo -u $USER_NAME pactl --server $PULSE_SERVER set-card-profile 0 output:hdmi-stereo+input:analog-stereo
else
    sudo -u $USER_NAME pactl --server $PULSE_SERVER set-card-profile 0 output:analog-stereo+input:analog-stereo
fi

#!/bin/bash

# NAME: hotplugtv
# PATH: /home/$USER/bin
# DESC: Update pulseaudio output device when HDMI TV plugged / unplugged
# CALL: called from /etc/udev/rules.d/99-hotplugtv.rules 
#       and /home/$USER/bin/lock-screen-timer
# DATE: Created Nov 26, 2016.
# NOTE: logs output using log-file
# UPDT: Dec 14, 2016 - Sometimes /sys/class/drm/card0 & sometimes /sys/class/drm/card1
#       so use /sys/class/dmcard* instead.
#       Dec 21, 2016 - Relocated to /home/$USER/bin for calling by lock-screen-timer
#       Aug 06, 2017 - Convert from home grown log-file to universal logger command.

if [[ $(cat /sys/class/drm/card*-HDMI-A-1/status | grep -Ec "^connected") -eq 1 ]]; then
        logger -t /home/rick/bin/log-hotplugtv "HDMI TV connected"
        /bin/sleep 2;
        export PULSE_RUNTIME_PATH="/run/user/1000/pulse/";
        sudo -u rick -E pacmd set-card-profile 0 output:hdmi-stereo;
else
        logger -t /home/rick/bin/log-hotplugtv "HDMI TV disconnected"
        export PULSE_RUNTIME_PATH="/run/user/1000/pulse/";
        sudo -u rick -E pacmd set-card-profile 0 output:analog-stereo;
fi

exit 0

ACTION=="change", SUBSYSTEM=="drm", ENV{HOTPLUG}=="1", RUN+="/home/rick/bin/hotplugtv"