[Bug 1582517] Re: Cannot change system language

[bryan paradis]

** Attachment added: "gnome-language-selector strace"
   https://bugs.launchpad.net/ubuntu/+source/language-selector/+bug/1582517/+attachment/4664311/+files/ls.strace

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Title:
  Cannot change system language

Status in language-selector package in Ubuntu:
  New

Bug description:
  System: Dell E6140 i7-620M & Nvidia NVS3100
  Ubuntu: 16.04
  Kernel: Linux bryan-Latitude-E6410 4.4.0-22-generic #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  Updates: Fully updated as of May 16, 2016

  Procedure:
  ----------
  1) Open Language Support
  2) Add Japanese Language Support by entering Install/Remove Languages and choosing Japanese from the list
  3) Drag Japanese to the top of the ordered list in the main window of Language Support
  4) Press Apply System-Wide
  5) Logout
  6) Login

  Expected Outcome:
  -----------------
  System is now in Japanese

  Observed Outcome:
  -----------------
  System is still in English
  Language Support reverted to showing Japanese at the bottom of the ordered list
  An error is printed to stderr if ran manually. See below in the description

  Description:
  ------------
  Fairly fresh 16.04 Ubuntu install. I was once able to change my system language between English, French, Esperanto and Japanese. Now I am unable to change to any of them. I have been troubleshooting the issue. Things that I have tried:

  1) Creating a new user. Also fails.
  2) Purging and reinstalling language-selector-gnome and language-selector-common
  3) Purging and reinstalling language-selector-gnome, language-selector-common, fontconfig and fontconfig-config
  4) Purging language-selector-gnome, language-selector-common, fontconfig, fontconfig-config and all japanese language packs
  5) Removing all language packs from Language Support GUI (aka language-selector-gnome)

  I am now looking into the problem itself. When running the Language
  Support GUI manually from the terminal via python3 /usr/bin/gnome-
  language-selector I get the following error:

  -----------------------------------

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 67, in wrapper
      res = f(*args, **kwargs)
    File "/usr/lib/python3/dist-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 1056, in on_treeview_locales_drag_end
      self.writeUserLanguage(envLanguage)
    File "/usr/lib/python3/dist-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 802, in writeUserLanguage
      self.writeUserLanguageSetting(userLanguage=languageString)
    File "/usr/lib/python3/dist-packages/LanguageSelector/LanguageSelector.py", line 87, in writeUserLanguageSetting
      iface.SetLanguage(self.validateLangList(userLanguage))
    File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 70, in __call__
      return self._proxy_method(*args, **keywords)
    File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__
      **keywords)
    File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
      message, timeout)
  dbus.exceptions.DBusException: org.freedesktop.Accounts.Error.PermissionDenied: Not authorized

  -----------------------------------

  I have also taken a strace of this as well via strace -F -tt -s 255 -o
  ls.strace python3 /usr/bin/gnome-language-selector and will attach it
  to this issue as well as my current dpkg.

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