Bug 1215962

Summary:	XMODIFIERS and QT_IM_MODULE are not set when using Gnome Wayland, therefore ibus does not work in Qt or X11 programs started from a Gnome Wayland desktop
Product:	[Fedora] Fedora	Reporter:	Mike FABIAN <mfabian>
Component:	gnome-settings-daemon	Assignee:	Bastien Nocera <bnocera>
Status:	CLOSED NEXTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	22	CC:	bnocera, fmuellner, kalevlember, mfabian, mkasik, ofourdan, rstrode, tfujiwar, tiagomatos
Target Milestone:	---
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Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-07-19 13:53:52 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Mike FABIAN 2015-04-28 08:50:44 UTC

On a Gnome Wayland session in Fedora 22 Beta, ibus works
after the fix by Fujiwara San is applied
(see https://bugzilla.redhat.com/show_bug.cgi?id=1214271#c6).

But in Qt or plain X11 programs started from a Gnome Wayland session,
ibus still does not work
(see https://bugzilla.redhat.com/show_bug.cgi?id=1214271#c3).

This is because the environment variables

    XMODIFIERS=@im=ibus

and

    QT_IM_MODULE=ibus

are not set.

Setting the environment variable GTK_IM_MODULE=ibus is optional
because 

    [mfabian@Fedora-Live-Workstation-x86_64-2 ~]$ dconf dump /org/gnome/desktop/interface/
    [/]
    gtk-im-module='ibus'

already makes the GTK programs use ibus.

But XMODIFIERS and QT_IM_MODULES are required.

Comment 1 Mike FABIAN 2015-04-28 09:19:30 UTC

On a non-Wayland Gnome session on Fedora 22 Beta,
QT_IM_MODULE=ibus and XMODIFIERS=@im=ibus are set.

Comment 2 Mike FABIAN 2015-04-28 09:22:19 UTC

On a non-Wayland Gnome session on Fedora 22 Beta,

IM_SETTINGS_MODULE=IBus

is set as well, which is not set on the Gnome Wayland session either.

Comment 3 Mike FABIAN 2015-04-28 09:31:00 UTC

(In reply to Mike FABIAN from comment #2)

> IM_SETTINGS_MODULE=IBus

IMSETTINGS_MODULE=IBus

sorry for the typo.

Comment 4 Ray Strode [halfline] 2015-04-29 14:36:14 UTC

This probably works in X but not wayland, because X sessions are run through the 

 /etc/X11/Xsession 

shell script which runs a tower of shell scripts in

 /etc/X11/xinit/xinitrc.d

We don't run Xsession on wayland, so probably need to find some other way to set the environment variables (or change the code to have the right defaults and not need them)

Comment 5 fujiwara 2015-04-30 05:54:17 UTC

gnome-settings-daemon/main.c:set_legacy_ibus_env_vars() sends QT_IM_MODULE and XMODIFERS environment variables.

and gnome-session/gsm-manager.c:gsm_manager_setenv() receives the environment variables and calls setenv().

setenv() works in non-Wayland GNOME but does not work in GNOME Wayland.

Comment 6 fujiwara 2015-05-11 05:39:43 UTC

__environ[] includes QT_IM_MODULE and XMODIFIERS in gnome-session but /proc/$PID/environ does not include the variables.
I don't know why this can happen in wayland.

Comment 7 Fedora End Of Life 2016-07-19 13:53:52 UTC

Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.

Comment 8 fujiwara 2016-07-20 05:01:45 UTC

Fixed verified in Fedora 24.