펄스 오디오를 강제로 다시 로드하고 시스템을 재부팅해 보았지만 모두 소용이 없었습니다. 그러나 나는 다음을 시도했습니다.
phonon@DALEK:~$ apt-get install alsa-utils -y
E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
phonon@DALEK:~$ sudo apt-get install alsa-utils -y
[sudo] password for phonon:
Reading package lists... Done
Building dependency tree
Reading state information... Done
alsa-utils is already the newest version (1.1.3-1ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 251 not upgraded.
phonon@DALEK:~$ systemctl --user enable pulseaudio && systemctl --user start pulseaudio
Created symlink /home/phonon/.config/systemd/user/default.target.wants/pulseaudio.service → /usr/lib/systemd/user/pulseaudio.service.
Created symlink /home/phonon/.config/systemd/user/sockets.target.wants/pulseaudio.socket → /usr/lib/systemd/user/pulseaudio.socket.
Job for pulseaudio.service failed because the control process exited with error code.
See "systemctl --user status pulseaudio.service" and "journalctl --user -xe" for details.
phonon@DALEK:~$ systemctl --user status pulseaudio.service
● pulseaudio.service - Sound Service
Loaded: loaded (/usr/lib/systemd/user/pulseaudio.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Wed 2019-09-25 08:44:40 PDT; 26s ago
Process: 2128 ExecStart=/usr/bin/pulseaudio --daemonize=no (code=exited, status=1/FAILURE)
Main PID: 2128 (code=exited, status=1/FAILURE)
Sep 25 08:44:40 DALEK systemd[1149]: pulseaudio.service: Service hold-off time over, scheduling restart.
Sep 25 08:44:40 DALEK systemd[1149]: pulseaudio.service: Scheduled restart job, restart counter is at 5.
Sep 25 08:44:40 DALEK systemd[1149]: Stopped Sound Service.
Sep 25 08:44:40 DALEK systemd[1149]: pulseaudio.service: Start request repeated too quickly.
Sep 25 08:44:40 DALEK systemd[1149]: pulseaudio.service: Failed with result 'exit-code'.
Sep 25 08:44:40 DALEK systemd[1149]: Failed to start Sound Service.
그래서 여기에 있는 오류 코드의 의미와 이 문제를 해결하는 방법이 무엇인지 혼란스럽습니다. pulseaudio를 다시 설치하려고 시도했지만 이로 인해 계피가 엉망이 되었습니다.
BIOS에서 사운드를 테스트했는데 제대로 작동하기 때문에 이것이 하드웨어 결함이 아니라는 것을 알고 있습니다.
제안한대로 나는 이것을 시도했습니다 :
phonon@DALEK:~$ systemctl status sound.target
● sound.target - Sound Card
Loaded: loaded (/lib/systemd/system/sound.target; static; vendor preset: enab
Active: active since Wed 2019-09-25 15:49:57 PDT; 16h ago
Docs: man:systemd.special(7)
Sep 25 15:49:57 DALEK systemd[1]: Reached target Sound Card.
lines 1-6/6 (END)...skipping...
● sound.target - Sound Card
Loaded: loaded (/lib/systemd/system/sound.target; static; vendor preset: enabled)
Active: active since Wed 2019-09-25 15:49:57 PDT; 16h ago
Docs: man:systemd.special(7)
Sep 25 15:49:57 DALEK systemd[1]: Reached target Sound Card.