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I have a script that basically does
```
#! /usr/bin/bash
sleep 5
thunderbird &
```
and an appropriate desktop file in .~/.config/autostart to run it.
Since upgrading from Plasma 5.24 to 5.27 (from the backports PPA), this
no longer works. The script is run (added logging, eg. with systemd-cat,
prove it) but Thunderbird does not appear. However, it does work if I
change it to the following.
```
#! /usr/bin/bash
sleep 5
thunderbird
```
So I suspect this is related to how systemd-xdg-autostart-generator runs
the associated service. I tried various combinations like ``kstart5
thunderbird & disown``, to no avail.
Note this script is an MWE example ; my actual script is more convoluted
and needs subprocess detachment to work properly.
Plasma 5.24 did not exhibit this behaviour. I do not know if it was
using systemd-xdg-autostart-generator to manage autostart.
Current systemd version is 249.11-0ubuntu3.12, which is too old to
report upstream about.
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-100-generic (64-bit)
Graphics Platform: X11
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment
--
systemd-xdg-autostart-generator-ed service does not correctly run script that
detaches a subprocess
https://bugs.launchpad.net/bugs/2056665
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