[Bug 2008279] Re: glib2.0 2.75.3-3 breaks text input for Firefox & Chromium snaps if IBus is turned on

[James Henstridge]

I think last time we had problems like this it was due to changes in the
location of the socket for ibus's private D-Bus bus. Looking into the
glib diffs for clues.

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Title:
  glib2.0 2.75.3-3 breaks text input for Firefox & Chromium snaps if
  IBus is turned on

Status in glib2.0 package in Ubuntu:
  New
Status in ibus package in Ubuntu:
  New

Bug description:
  Test Case
  ---------
  From Ubuntu 23.04, install glib >= 2.75.3-3

  Test 1:
  Log out
  Click your name on the login screen.
  Click the gear button to choose Ubuntu on Xorg
  Enter your password to finish logging in.
  Open Firefox (or Chromium)
  Try to enter text in the address bar.

  Test 2:
  Install the ibus-libpinyin package.
  Log out and log in again.
  Go to Settings -> Keyboard and add "Chinese (Intelligent Pinyin)"
   to your input sources.
  Log out
  Click your name on the login screen.
  Click the gear button to choose Ubuntu (on Wayland).
  Enter your password to finish logging in.
  Open Firefox (or Chromium)
  Try to enter text in the address bar.

  What Happens
  ------------
  No text is inputted

  Other Info
  ----------
  You see the issue as soon as IBus has been 'turned on'. With the current g-s-d version you need to somehow trigger a need to turn IBus on. In an X11 session IBus is always turned on due to im-config 0.55-1. In a Wayland session you need to tell it to turn IBus on by either adding an IBus input method to your input sources or make use of the Screen Keyboard feature.

  And I've only seen the issue with the Firefox and Chromium snaps.

  Warning message if you start firefox from terminal:

  [Parent 3792, Main Thread] WARNING: Unable to connect to ibus: Could
  not connect: Permission denied: 'glib warning', file
  /build/firefox/parts/firefox/build/toolkit/xre/nsSigHandlers.cpp:167

  (firefox:3792): IBUS-WARNING **: 15:23:11.814: Unable to connect to
  ibus: Could not connect: Permission denied

  gnome-settings-daemon
  ---------------------
  gnome-settings-daemon 44 Beta makes the situation worse since it always turns IBus on in both Wayland and X11, but I reverted https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/commit/27bc0889c so that we could continue with the update. See https://salsa.debian.org/gnome-team/gnome-settings-daemon/-/commit/baeeed93

  Before I did that, I tested disabling our patches but it didn't make a
  difference.

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