[systemd-bugs] [Bug 88381] Logging out in VT freezes display + input

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88381

--- Comment #3 from amosonn at gmail.com ---
System does not seem to react to keypresses, at least not as far as display is
concerned; I will check more thoroughly whether keypresses still go through to
the X session, and only display is cut off; however, I think this is not the
case.

As far as I understand, systemd is, at least in part, responsible for managing
session switches, incl. VT switches. Therefore, since the system still runs
(audio output from online streaming continues normally), I assume that systemd
somehow denies the X session of access to the display and keyboard, but still
intercepts keypresses so a switch to another VT is also impossible.

As I have mentioned, sshd does not completely hang; it does respond to a
connection, but fails to open a new session (at least as far as can be inferred
from the output on the remote host). As journald logs stop after the fatal
logout, I can't tell for sure what happens.

Lastly, this might be related to some issue with getty. However, even in the
case where getty hangs, I'd expect systemd to eventually "forcefully" rescind
access to display and keyboard and transfer it to the requested VT (that of the
X session).

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