appmenu-gtk-module makes glade crash

[Rick Schulz]

Using Ubuntu Mate Cosmic, glade 3.22.1-2 on x86_64. Window manager is Mate. When starting glade, it first opens correctly. Upon adding a top-level component (such as a window), it crashes:

(glade:14581): Gdk-WARNING **: 12:43:44.228: ../../../../../gdk/x11/gdkwindow-x11.c:5576 drawable is not a native X11 window

(glade:14581): Gdk-ERROR **: 12:43:44.229: The program 'glade' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
  (Details: serial 25976 error_code 3 request_code 20 (core protocol) minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)

Searching for this issue shows some people who're trying to run glade on Wayland (e.g., https://ubuntu-mate.community/t/glade-application-faults/17966 https://forum.manjaro.org/t/placing-a-toplevel-object-on-glade-crashes-it/46507 ). However, I am NOT using wayland:

$ env | grep XDG_SESSION_TYPE
XDG_SESSION_TYPE=x11

Thanks for looking into this. Rick

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Thomas Allen (oinksoft)]

I am experiencing the same issue with glade 3.22.1-1 in an Xfce X11 session on Ubuntu 18.04.1 LTS.

[Lorenz Gillner (lorenzgillner)]

I am also experiencing this issue. Glade 3.22.1 with MATE (X11) on Ubuntu 19.10.

[Nicholas Tsimerekis (ntsimerekis)]

Same issue with glade 3.22.2-1 on Ubuntu MATE focal.

[thom (tsk)]

I can add the info that:
1) Older versions of glade (i.e. 3.18) that worked before, crash with the current library set.
2) the snap version of glade does work on Ubuntu MATE focal.

[Nathan Booth (toothless204)]

Same issue on Ubuntu MATE 20.04 LTS with glade 3.22.2-1

[Nathan Booth (toothless204)]

I can also add that this issue maybe due to Ubuntu/Debian specific patches in lower levels of the stack (eg. gtk or even gdk) because downloading the upstream source for 3.22.2 and building it outside of a deb package still results in this same crash

[Alexander (5-accounts)]

Not a huge fan of snaps, but I was able to work around the issue and get a functioning glade instance on my 20.04 workstation by installing the image from https://snapcraft.io/glade. Since this image works I tend to agree with Nathan's assessment from comment #7.

[Mohanad Lababidi (lababidy)]

I want to confirm that glade worked from snap Ubuntu 20.04 as Alexander point

[Alkis Georgopoulos (alkisg)]

Affects me too, on Ubuntu MATE 20.04.

Glade on Debian GNOME Bullseye works fine, both with Wayland and Xorg.

[Alkis Georgopoulos (alkisg)]

The problem seems to be caused by /etc/profile.d/vala-panel-appmenu.sh that sets
GTK_MODULES="$GTK_MODULES:appmenu-gtk-module"

If one unsets that environment variable, glade works: `GTK_MODULES= glade`

That file seems to be shipped by Debian and not by upstream, if Ubuntu doesn't respond we should probably file the bug against Debian > vala-panel-appmenu.

[Torsten Torell (ghtorell)]

Just want to mention that:
I downloaded glade 3.38.1 as source code from glade.gnome.org and built it with meson and ninja, as instructed, on Ubuntu 20.04 Desktop. (Had to install a lot of packages to make it build, though).
When I run glade from bash cmd-line I get the message you are discussing:
(glade:20715): Gdk-WARNING **: 15:27:23.596: ../../../../../gdk/x11/gdkwindow-x11.c:5633 drawable is not a native X11 window

glade window opens up OK, and I can load my .glade-file, so it's maybe not a big issue.

[thom (tsk)]

I toyed around a bit based on the post #11 from Alkis Georgopoulos
(thank you for that, vala-panel-appmenu.sh is indeed the culprit, that was really really helpful)

One solution is change the exec line in the desktop file like: env GTK_MODULES=glade glade %f
this is one solution that works.

But I think a better solution would be to delete /etc/profile.d/vala-panel-appmenu.sh altogether because the environment variables GTK_MODULES and UBUNTU_MENUPROXY are both not in use in Ubuntu-MATE and AFAICT for GNOME-Desktop only.

I deleted /etc/profile.d/vala-panel-appmenu.sh
It works without problem and I think it is a bit more elegant.

Could/should the file /etc/profile.d/vala-panel-appmenu.sh be marked as a conflict against mate-desktop-environment package ?
In that case it would only be installed if the desktop is NOT Ubuntu-MATE