[Bug 1899638] Re: ubuntu-bug won't show GUI window in pure wayland-sessions

[Benjamin Drung]

I cannot reproduce your problem and neither find a problem in the code.

Running "env -u DISPLAY ubuntu-bug -w apport" on a fresh Ubuntu 22.04
installation (with GNOME and wayland) opens apport-gtk correctly.
Neither killing Xwayland nor only setting WAYLAND_DISPLAY by running
"env -i WAYLAND_DISPLAY=wayland-0 ubuntu-bug -w apport" did change
anything (note: apport-gtk crashed in the latter case, but it was
called).

Supporting WAYLAND_DISPLAY as alternative was implemented in bug
#1418766 long time ago.

Can you reproduce your problem? What environment are you in?

** Changed in: apport (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1899638

Title:
  ubuntu-bug won't show GUI window in pure wayland-sessions

Status in apport package in Ubuntu:
  Incomplete

Bug description:
  In case only `WAYLAND_DISPLAY` env variable is set (but no `DISPLAY`
  as XWayland is disabled), ubuntu-bug won't show its window, even
  though GTK will use the Wayland backend.

  Test case, in an Ubuntu wayland session:
   - Run:
        env -u DISPLAY ubuntu-bug -w apport

  
  You will get:

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  marco at marco-virtual-machine:~$ Error: no DISPLAY environment variable specified
  ^C

  ---

  So, ubuntu-bug should both consider `DISPLAY` and `WAYLAND_DISPLAY` to
  be enough to use a graphical session.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: apport 2.20.11-0ubuntu49
  ProcVersionSignature: Ubuntu 5.8.0-22.23-generic 5.8.14
  Uname: Linux 5.8.0-22-generic x86_64
  ApportVersion: 2.20.11-0ubuntu49
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashReports: 640:1000:125:21823957:2020-10-13 15:15:42.354004383 +0200:2020-10-13 15:15:43.354004383 +0200:/var/crash/_usr_bin_gnome-shell.1000.crash
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 13 15:22:34 2020
  InstallationDate: Installed on 2020-10-13 (0 days ago)
  InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Beta amd64 (20201013.1)
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: No upgrade log present (probably fresh install)

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