Bug#885318: systemd kills X or freezes it when logging out from last opened tty

[Nekki Nekki]

Package: systemd
Version: 236-1
Severity: critical

Dear maintainers,

When using startx (no DM enabled) I suspect that systemd logs me out from
my X session
if it doesn't freezes it. I try to explain: I login in my openbox session
on tty1 using
startx, and in tty2 I run some program, say 'moc'. When I logout from tty2,
I get immediately
switched to tty1 and logged out from my openbox session. That is what
happens in my Sid guest.
I have same problem in my Sid host, but instead of being logged out from my
openbox session,
I get switched to it being in frozen state (Iget switched to tty1 and I get
my openbox session
frozen) and I am forced to use 'reisub'.
Note that:
1. if I don't 'exit' my tty2 session, I can switch between tty1 (openbox
session) and tty2,
or any other Console, just fine.
2. if I use a DM (I use wdm), I have no problems at all.
3. I sent this bug report from my Sid guest.

Please, let me know if you need more info/details.

Cheers,
Awtul

-- Package-specific info:

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.0-2-amd64 (SMP w/1 CPU core)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8),
LANGUAGE=es_ES:es (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  adduser         3.116
ii  libacl1         2.2.52-3+b1
ii  libapparmor1    2.11.1-4
ii  libaudit1       1:2.8.2-1
ii  libblkid1       2.30.2-0.1
ii  libc6           2.25-5
ii  libcap2         1:2.25-1.2
ii  libcryptsetup4  2:1.7.5-1
ii  libgcrypt20     1.8.1-4
ii  libgpg-error0   1.27-5
ii  libidn11        1.33-2.1
ii  libip4tc0       1.6.1-2+b1
ii  libkmod2        24-1
ii  liblz4-1        0.0~r131-2+b1
ii  liblzma5        5.2.2-1.3
ii  libmount1       2.30.2-0.1
ii  libpam0g        1.1.8-3.6
ii  libseccomp2     2.3.1-2.1
ii  libselinux1     2.7-2
ii  libsystemd0     236-1
ii  mount           2.30.2-0.1
ii  procps          2:3.3.12-3
ii  util-linux      2.30.2-0.1

Versions of packages systemd recommends:
ii  dbus            1.12.2-1
ii  libpam-systemd  236-1

Versions of packages systemd suggests:
ii  policykit-1        0.105-18
pn  systemd-container  <none>

Versions of packages systemd is related to:
pn  dracut           <none>
ii  initramfs-tools  0.130
ii  udev             236-1

-- Configuration Files:
/etc/systemd/system.conf changed:
[Manager]
ShowStatus=yes


-- no debconf information
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