Dear Maintainer,

Since a recent update, switching keyboard layouts from the menu in the
topbar (clicking the language symbol in the topbar and choosing a
keyboard layout) does not work any more, i.e., the action has no effect.
Switching layouts works fine with the keyboard shortcut as well as with
the mouse in the overview.

I have the option "Switch input sources individually for each window"
set to "on" and I am using three different keyboard layouts. I have also
disabled all gnome-shell extensions to test this.

Another related problem is that if the current window and the overview
are using different keyboard layouts, the animation for switching to the
overview visibly stutters.

This worked fine before the update.

Best wishes,
Todor

Control: reassign -1 src:mutter 43.3-4
Control: affects -1 + gnome-shell

gnome-shell 43.3-2 was only a translation update, so it's
unlikely to be that.

Based on the timing of your report, this is probably a regression in
mutter 43.3-4. Please look at /var/log/apt/history.log: what version of
libmutter-11-0 would you have been using at the time you most recently
restarted gnome-shell before this regression?

Are you using gnome-shell in X11 mode ("GNOME on Xorg") or in Wayland mode?

I can reproduce something similar in a test VM using gnome-text-editor
and gnome-terminal as my sample applications, but only in Xorg, not
in Wayland.

Upstream has been tracking some issues involving focus handling which are
probably related to this.

If you turn off that option, does that make a difference?

    smcv

43.3-2 and also with gnome-shell 43.3-2 and 43.2-2. (I logged out and
back in between all tests.) So, basically, I have no idea when it
appeared. Maybe it is older and I just noticed it recently.

I am using Xorg. I tested with Wayland and there it works fine.

Yes, it does. If I turn it off, changing the layout works fine.

Control: forwarded -1 https://gitlab.gnome.org/GNOME/mutter/-/issues/2626

This seems to be a particularly bad version of
<https://gitlab.gnome.org/GNOME/mutter/-/issues/2626> (the same root cause
as #1031945). Because you're using a per-window input source choice,
losing window focus invalidates the action you were trying to do.

The changes from upstream merge request !2878 seem to fix this, and will be
in mutter 43.3-5, 44.rc, and hopefully also 43.4.

Please open a separate bug for this if it still persists after #1032388 is
fixed, and is significant enough to be worthwhile to track.

I'm unlikely to work on solving minor performance/framerate issues myself
(I'm already trying to fix too many things!) but other GNOME team members
are welcome to look into it.

    smcv

We believe that the bug you reported is fixed in the latest version of
mutter, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1032388@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Simon McVittie <smcv@debian.org> (supplier of updated mutter package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 06 Mar 2023 11:35:23 +0000
Source: mutter
Architecture: source
Version: 43.3-5
Distribution: unstable
Urgency: medium
Maintainer: Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
Changed-By: Simon McVittie <smcv@debian.org>
Closes: 1031945 1032388
Changes:
 mutter (43.3-5) unstable; urgency=medium
 .
   * Team upload
   * d/patches: Use the same order in which patches were applied upstream
   * d/p/color-device-Make-sure-lcms_context-is-not-NULL.patch,
     d/p/color-device-Don-t-close-lcms-profile-on-error-from-cd_ic.patch:
     Use final version of these patches as applied upstream
   * d/p/Revert-x11-Do-not-move-X11-input-focus-during-grabs.patch,
     d/p/Revert-x11-events-Do-not-update-focus-XWindow-during-grab.patch,
     d/p/x11-Ignore-_NET_ACTIVE_WINDOW-client-messages-while-grabb.patch,
     d/p/core-Avoid-focusing-windows-on-map-during-grabs.patch:
     Backport upstream merge request !2878, fixing X11 focus regressions
     (Closes: #1032388, #1031945)
   * d/p/tests-Use-a-more-interoperable-path-to-bash.patch:
     Fix path to interpreter in x11-test.sh instead of disabling it
     - d/p/tests-Disable-broken-test.patch: Drop patch, no longer needed
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We believe that the bug you reported is fixed in the latest version of
mutter, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1032388@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Marco Trevisan (Treviño) <marco@ubuntu.com> (supplier of updated mutter package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Wed, 08 Mar 2023 02:29:22 +0100
Source: mutter
Architecture: source
Version: 44~rc-1
Distribution: experimental
Urgency: medium
Maintainer: Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
Changed-By: Marco Trevisan (Treviño) <marco@ubuntu.com>
Closes: 1031847 1031945 1032388
Changes:
 mutter (44~rc-1) experimental; urgency=medium
 .
   [ Jeremy Bicha ]
   * New upstream release
   * d/p/wayland-Don-t-overwrite-surface-offsets.patch,
     d/p/x11-Avoid-updating-focus-on-wayland-compositor.patch:
     Drop, applied in new release
   * debian/control.in: Build-Depend on libgnome-desktop-4-dev instead of -3
   * debian/control.in: Mark libgtk-3-dev as only needed for build tests
   * debian/control.in: Bump minimum wayland-protocols to 1.31
   * debian/*.symbols: Update; some "private" meta_* symbols were dropped
 .
   [ Simon McVittie ]
   * Merge packaging from unstable (Closes: #1031945, #1032388, #1031847)
     - Drop patches that were backported from upstream 44.rc into unstable
     - d/p/tests-Use-a-more-interoperable-path-to-bash.patch:
       Fix path to interpreter in x11-test.sh instead of disabling it
     - d/p/tests-Disable-broken-test.patch: Drop patch, no longer needed
   * d/p/debian/backends-native-kms-crtc-Don-t-compare-gamma-values-on-un.patch:
     Drop patch from upstream !2371, which no longer applies cleanly.
     As far as I can see, this is unnecessary since commit 9001fa97
     "kms/crtc: Always read the gamma state" from !2435.
 .
   [ Marco Trevisan (Treviño) ]
   * d/p/debian/Support-Dynamic-triple-double-buffering.patch:
     Refreshed with the 44-WIP version from Daniel, it's working properly in
     main tested scenarios.
   * debian/patches: Drop patch removing dependency on glib 2.75
   * debian/control: Bump build-dependency on glib-2.75
   * debian/control: Add breaks on gnome-shell << 44~rc.
     It's not possible to compile older gnome-shell versions with mutter
     44~rc due to the gtk dependency removal
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The bug is still present for me with mutter 43.3-5 from unstable.

Control: reopen -1

Even after logging out and back in?

Is anything logged in the journal?

Is it still the same situation you described in earlier messages, where
using Wayland avoids the bug, disabling "Switch input sources individually
for each window" also avoids the bug, but it can be reproduced by using
Xorg and enabling "Switch input sources individually for each window"?

    smcv

Yes.

Mar 09 23:02:58 alsvin gnome-shell[3173]: Window manager warning:
Overwriting existing binding of keysym ff09 with keysym ff09 (keycode 17).

I am not sure what it is about.

Yes, that's it.

Control: retitle -1 gnome-shell: can't switch keyboard layout using top bar menu in Xorg mode with per-window input source

I can reproduce this in a test VM, and I've reported it upstream as
<https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6484>. I don't know
whether it's really a gnome-shell bug or a mutter bug, so I'll leave it
assigned to mutter here for now.

    smcv