Public bug reported:
This is on xubuntu 16.04 with systemd 229-4ubuntu6:
systemctl cannot reenable lightdm
I have deactivated lightdm with:
root@tux:~# systemctl disable lightdm
root@tux:~# reboot
Works as expected: lightdm does not start any more.
Then I tried to reenable it with:
root@tux:~# systemctl enable lightdm
root@tux:~# reboot
root@tux:~# systemctl reenable lightdm
root@tux:~# reboot
But lightdm still does not start any more!
I have to start lightdm manually with:
root@tux:~# systemctl start lightdm
root@tux:~# systemctl is-enabled lightdm
static
root@tux:~# systemctl status lightdm
* lightdm.service - Light Display Manager
Loaded: loaded (/lib/systemd/system/lightdm.service; static; vendor preset: e
Active: active (running) since Wed 2016-06-22 11:06:16 CEST; 12s ago
Docs: man:lightdm(1)
Process: 1803 ExecStartPre=/bin/sh -c [ "$(basename $(cat /etc/X11/default-dis
Main PID: 1810 (lightdm)
CGroup: /system.slice/lightdm.service
|-1810 /usr/sbin/lightdm
`-1822 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm
I found a workaround, after:
root@tux:~# ln -s /lib/systemd/system/lightdm.service
/etc/systemd/system/display-manager.service
root@tux:~# reboot
lightdm is starting again automatically at boot time.
"systemctl enable lightdm" does not restore this link!
This is the bug.
root@tux:~# systemctl --version
systemd 229
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP
+GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1595454
Title:
systemctl cannot reenable lightdm (with workaround)
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