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[Jonathan Gilbert <1851573@xxxxxxxxxxxxxxxxxx>]

I experienced this today doing system updates. I have a proposed
workaround until it is properly solved in `debconf-kde-helper`. The root
of the problem seems to be that `debconf-kde-helper` is being launched
from a barebones process with an empty environment. It assumes that it
is going to be able to find the current user's home directory with
`getenv("HOME")`, but as that variable is unset, injecting it into the
string `"/$HOME/.config/..."` results in `//.config/...`. So... why not
just make sure `$HOME` is in fact set? :-)

Steps:

1. Obtain a root shell.

2. `cd /usr/bin`

3. `mv debconf-kde-helper debconf-kde-helper-actual`

4. Create a new `debconf-kde-helper`:

```
#!/bin/bash
eval export HOME=~`/usr/bin/whoami`
${BASH_SOURCE}-actual $@
```

5. `chmod +x debconf-kde-helper`

I haven't yet seen this fully-integrated, but I tested it by running a
shell and clearing the $HOME environment variable. Without this, running
`debconf-kde-helper` reproduces the "//.config/..." error. With this
workaround, no error appears.

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https://bugs.launchpad.net/bugs/1851573

Title:
  configuration file //.config/debconf-kde-helperrc not writable

Status in KDE Base Runtime:
  New
Status in kde-runtime package in Ubuntu:
  Confirmed

Bug description:
  Running ubuntu 19.10 with plasma 5.17 backport. When I run Configure -
  system settings module from bluetooth icon on icon tray it displays
  the error:

  debconf-kde-helper - KDialog
  Configuration file "//.config/debconf-kde-helperrc" not writable.
  Please contact your system administrator.

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