Comment 21 for bug 1817738

Verification successful with bionic-proposed.

Tested in login screen and auto-login session;
repeated 5 times with consistent results.

bionic-updates
--------------

$ dpkg -s plymouth | grep ^Version:
Version: 0.9.3-1ubuntu7.18.04.1

$ grep -wo splash /proc/cmdline
splash

$ dmesg | grep console
[ 0.004000] console [tty0] enabled

$ sudo fgconsole
1

$ sudo chvt 4
^C # blocked.

$ sudo strace -e ioctl chvt 4
<...>
ioctl(3, VT_ACTIVATE, 0x4) = 0
ioctl(3, VT_WAITACTIVE, 0x4

<blocks until...> ^C) = -1 EINTR (Interrupted system call)
strace: Process 1518 detached

bionic-proposed
---------------

$ dpkg -s plymouth | grep ^Version:
Version: 0.9.3-1ubuntu7.18.04.2

$ grep -wo splash /proc/cmdline
splash

$ dmesg | grep console
[ 0.004000] console [tty0] enabled

$ sudo fgconsole
1

$ sudo chvt 4
$ # finished.