Comment 10 for bug 2066275

I enabled proposed and installed the updated package with

$sudo apt install sdddm=0.20.0-2ubuntu4.1

But my /usr/lib/systemd/system/sddm.service still looks like this:

------------------------
[Unit]
Description=Simple Desktop Display Manager
Documentation=man:sddm(1) man:sddm.conf(5)
# Change this if you want to start sddm in a different tty
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# If using tty1 and plymouth, sddm will fail till plymouth stops
# consider using:
## After=plymouth-quit.service
# or to forcefully stop plymouth and start earlier:
## Conflicts=plymouth-quit-wait.service
## After=plymouth-start.service plymouth-quit-wait.service
## OnFailure=plymouth-quit.service

# Ordering
Conflicts=plymouth-quit-wait.service
After=systemd-user-sessions.service plymouth-start.service plymouth-quit-wait.service plymouth-quit.service systemd-logind.service
OnFailure=plymouth-quit.service

[Service]
# temporary safety check until all DMs are converted to correct
# display-manager.service symlink handling
ExecStartPre=/bin/sh -c '[ "$(cat /etc/X11/default-display-manager 2>/dev/null)" = "/usr/bin/sddm" ]'
ExecStart=/usr/bin/sddm
Restart=always
RestartSec=1s
EnvironmentFile=-/etc/default/locale

[Install]
Alias=display-manager.service
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It seems it is lacking the changes from the patch.