Der Systemctl-Dienst startet nicht

Der Systemctl-Dienst startet nicht

Ich habe einen Dienst für mein RaspBerryPi-Projekt erstellt. Wenn ich ihn starte, passiert nichts. systemctl status sb.serviceGibt Folgendes zurück:

Failed to start RPI-sound board.
Unit entered failed state.
Failed with result 'exit-code'.

jdn.Dienst:

[Unit]
Description=RPI-sound board
After=network.target

[Service]
Type=simple
Restart=always
RestartSec=1
ExecStart=/home/pi/Desktop/RPSB/RpiSoundBoard.sh
User=pi

[Install]
WantedBy=multi-user.target

Die Dateien, die ausgeführt werden sollen, sindhier gehostet. Sie laufen einwandfrei, wenn ich sie selbst ausführe. Wie kann ich mehr Leistung aus meinem Dienst herausholen oder das Problem beheben?

Antwort1

Habe das Problem in gefunden /var/log/syslog.

    Traceback (most recent call last):
    File "/home/pi/Desktop/RPSB/soundPlayer.py", line 1, in <module>
    from pynput.keyboard import Key, Listener
    File "/home/pi/.local/lib/python3.5/site-packages/pynput/__init__.py", line 40, in <module>
    from . import keyboard
    File "/home/pi/.local/lib/python3.5/site-packages/pynput/keyboard/__init__.py", line 49, in <module>
    from ._xorg import KeyCode, Key, Controller, Listener
    File "/home/pi/.local/lib/python3.5/site-packages/pynput/keyboard/_xorg.py", line 39, in <module>
    from pynput._util.xorg import (
    File "/home/pi/.local/lib/python3.5/site-packages/pynput/_util/xorg.py", line 40, in <module>
    _check()
    File "/home/pi/.local/lib/python3.5/site-packages/pynput/_util/xorg.py", line 38, in _check
    display = Xlib.display.Display()
    File "/home/pi/.local/lib/python3.5/site-packages/Xlib/display.py", line 89, in __init__
    self.display = _BaseDisplay(display)
    File "/home/pi/.local/lib/python3.5/site-packages/Xlib/display.py", line 71, in __init__
    protocol_display.Display.__init__(self, *args, **keys)
    File "/home/pi/.local/lib/python3.5/site-packages/Xlib/protocol/display.py", line 84, in __init__
    name, protocol, host, displayno, screenno = connect.get_display(display)
    File "/home/pi/.local/lib/python3.5/site-packages/Xlib/support/connect.py", line 73, in get_display
    return mod.get_display(display)
    File "/home/pi/.local/lib/python3.5/site-packages/Xlib/support/unix_connect.py", line 76, in get_display
    error.DisplayNameError(display)
    Xlib.error.DisplayNameError: Bad display name ""

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