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Subject: bug#68055: lightdm and lightdm-gtk-greeter do not show session menu in guix.
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See previous info: https://issues.guix.gnu.org/57168
> It works fine, but there are a few gotchas:
> 1. The session selection menu doesn't show the items. I don't know why.
> Perhaps a regresssion with newer GTK+.
I use below code to test:
1. lightdm-gtk-greeter code:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> /* Session menu */ =
>
> g_debug ("XXXX: Call lightdm_get_sessions functions from main"); =
>
> items =3D lightdm_get_sessions (); =
>
> g_debug ("XXXX: Session menuitem create start."); =
>
> if (gtk_widget_get_visible (session_menuitem)) =
>
> { =
>
> GSList *sessions =3D NULL; =
>
> =
>
> if (gtk_icon_theme_has_icon (icon_theme, "document-properties-sym=
bolic")) >
> session_badge =3D gtk_image_new_from_icon_name ("document-pro=
perties-symbolic", GTK_ICON_SIZE_MENU); >
> else =
>
> session_badge =3D gtk_image_new_from_icon_name ("document-pro=
perties", GTK_ICON_SIZE_MENU); >
> gtk_widget_show (session_badge); =
>
> gtk_container_add (GTK_CONTAINER (session_menuitem), session_badg=
e); >
> =
>
> items =3D lightdm_get_sessions (); =
>
> for (item =3D items; item; item =3D item->next) =
>
> { =
>
> LightDMSession *session =3D item->data; =
>
> GtkWidget *radiomenuitem; =
>
> =
>
> g_debug ("XXXX: Session items: %s", lightdm_session_get_key (=
session)); >
> =
>
> radiomenuitem =3D gtk_radio_menu_item_new_with_label (session=
s, lightdm_session_get_name (session)); >
> g_object_set_data (G_OBJECT (radiomenuitem), SESSION_DATA_KEY=
, (gpointer) lightdm_session_get_key (session)); >
> sessions =3D gtk_radio_menu_item_get_group (GTK_RADIO_MENU_IT=
EM (radiomenuitem)); >
> g_signal_connect (G_OBJECT (radiomenuitem), "activate", G_CAL=
LBACK (session_selected_cb), NULL); >
> gtk_menu_shell_append (GTK_MENU_SHELL (session_menu), radiome=
nuitem); >
> gtk_widget_show (GTK_WIDGET (radiomenuitem)); =
>
> } =
>
> =
>
> set_session (NULL); =
>
> } =
>
> =
>
> g_debug ("XXXX: Session menuitem create stop."); =
>
> =
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
2. liblightdm_gobject code:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>> >
> /** =
>
> * lightdm_get_sessions: =
>
> * =
>
> * Get the available sessions. =
>
> * =
>
> * Return value: (element-type LightDMSession) (transfer none): A list of=
#LightDMSession >
> **/ =
>
> GList * =
>
> lightdm_get_sessions (void) =
>
> { =
>
> g_debug ("Run lightdm_get_session function.");=20=20=20=20
> update_sessions (); =
>
> return local_sessions; =
>
> } =
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>> >
In my debian machine, it will show the below log, and I find that
lightdm_get_session will be called successfully.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> DEBUG-Message: 10:51:53.859: XXXX: Call lightdm_get_sessions functions fr=
om main >
> DEBUG-Message: 10:51:53.859: Run lightdm_get_session function. =
>
> DEBUG-Message: 10:51:53.859: Sessions_dir /usr/share/lightdm/sessions:/us=
r/share/xsessions:/usr/share/wayland-sessions >
> DEBUG-Message: 10:51:53.859: Run lightdm_session_class_init. =
>
> DEBUG-Message: 10:51:53.859: Run lightdm_session_init. =
>
> DEBUG-Message: 10:51:53.859: Loaded session /usr/share/xsessions/lightdm-=
xsession.desktop (Default Xsession, ) >
> DEBUG-Message: 10:51:53.860: Run lightdm_session_init. =
>
> DEBUG-Message: 10:51:53.860: Loaded session /usr/share/xsessions/xfce.des=
ktop (Xfce =E4=BC=9A=E8=AF=9D, =E4=BD=BF=E7=94=A8=E6=AD=A4=E4=BC=9A=E8=AF=
=9D=E5=B0=86 Xfce =E4=BD=9C=E4=B8=BA=E6=82=A8=E7=9A=84=E6=A1=8C=E9=9D=A2=E7=
=8E=AF=E5=A2=83=E8=BF=90=E8=A1=8C) >
> DEBUG-Message: 10:51:53.860: Run lightdm_session_init. =
>
> DEBUG-Message: 10:51:53.860: Loaded session /usr/share/xsessions/icewm-se=
ssion.desktop (IceWM Session, =E6=AD=A4=E4=BC=9A=E8=AF=9D=E4=BD=BF=E6=82=A8=
=E7=99=BB=E5=BD=95=E5=88=B0 IceWM) >
> DEBUG-Message: 10:51:53.861: Run lightdm_session_init. =
>
> DEBUG-Message: 10:51:53.861: Loaded session /usr/share/wayland-sessions/w=
eston.desktop (Weston, The reference Wayland server) >
> DEBUG-Message: 10:51:53.861: XXXX: Session menuitem create start. =
>
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session items: lightdm-xsession =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session items: icewm-session =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session items: weston =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session items: xfce =
>
> DEBUG-Message: 10:51:53.864: XXXX: Call lightdm_get_sessions functions fr=
om set_session, argument: (null) >
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. =
>
> DEBUG-Message: 10:51:53.864: XXXX: Call lightdm_get_sessions functions fr=
om set_session, argument: xfce >
> DEBUG-Message: 10:51:53.864: Run lightdm_get_session function. =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session menuitem create stop. =
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
But in guix, lightdm_get_sessions seem to not be called, for I can not
find string "Run lightdm_get_session function. " in log file, just like
the below:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
> DEBUG-Message: 10:51:53.859: XXXX: Call lightdm_get_sessions functions fr=
om main >
> DEBUG-Message: 10:51:53.861: XXXX: Session menuitem create start. =
>
> DEBUG-Message: 10:51:53.864: XXXX: Session menuitem create stop. =
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>=
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >
liblightdm-gobject shared library seem to be loaded, for when I remove this=
lib,
gtk-greeter will not show.=20
but why lightdm_get_sessions function do not be called while
liblightdm-gobject is loaded?=20
--=20
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Feng Shu <tumashu@HIDDEN> Subject: bug#68055: Acknowledgement (lightdm and lightdm-gtk-greeter do not show session menu in guix.) Message-ID: <handler.68055.B.170366129323166.ack <at> debbugs.gnu.org> References: <87v88kglrs.fsf@HIDDEN> X-Gnu-PR-Message: ack 68055 X-Gnu-PR-Package: guix Reply-To: 68055 <at> debbugs.gnu.org Date: Wed, 27 Dec 2023 07:15:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-guix@HIDDEN If you wish to submit further information on this problem, please send it to 68055 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 68055: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D68055 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
X-Loop: help-debbugs@HIDDEN
Subject: bug#68055: lightdm and lightdm-gtk-greeter in guix system do not show session menu.
References: <87v88kglrs.fsf@HIDDEN>
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From: Feng Shu <tumashu@HIDDEN>
Date: Wed, 27 Dec 2023 16:49:37 +0800
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I have create a issue in lightdm github: https://github.com/canonical/lightdm/issues/333
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