Comment 1 for bug 1763717

$ sudo /usr/lib/snapd/snap-discard-ns shotcut
[sudo] password for alan:
alan@hal:~$ SNAPD_DEBUG=1 SNAP_CONFINE_DEBUG=1 shotcut
2018/04/13 14:36:49.197207 cmd.go:203: DEBUG: restarting into "/snap/core/current/usr/bin/snap"
DEBUG: security tag: snap.shotcut.shotcut
DEBUG: executable: /snap/core/current/usr/lib/snapd/snap-exec
DEBUG: confinement: classic
DEBUG: base snap: core
DEBUG: ruid: 1000, euid: 0, suid: 0
DEBUG: rgid: 1000, egid: 0, sgid: 0
DEBUG: apparmor label on snap-confine is: /snap/core/4443/usr/lib/snapd/snap-confine
DEBUG: apparmor mode is: enforce
DEBUG: skipping sandbox setup, classic confinement in use
DEBUG: creating user data directory: /home/alan/snap/shotcut/21
DEBUG: requesting changing of apparmor profile on next exec to snap.shotcut.shotcut
DEBUG: loading bpf program for security tag snap.shotcut.shotcut
DEBUG: read 14 bytes from /var/lib/snapd/seccomp/bpf//snap.shotcut.shotcut.bin
DEBUG: execv(/snap/core/current/usr/lib/snapd/snap-exec, /snap/core/current/usr/lib/snapd/snap-exec...)
DEBUG: argv[1] = shotcut

(process:25763): Gtk-WARNING **: 14:36:49.273: Locale not supported by C library.
        Using the fallback 'C' locale.
No appenders registered with logger
[Debug ] <ShotcutSettings::singleton> language "en_GB"
[Debug ] <ShotcutSettings::singleton> deinterlacer "onefield"
[Debug ] <ShotcutSettings::singleton> external monitor ""
[Debug ] <ShotcutSettings::singleton> GPU processing false
[Debug ] <ShotcutSettings::singleton> interpolation "nearest"
[Debug ] <ShotcutSettings::singleton> video mode ""
[Debug ] <ShotcutSettings::singleton> realtime true
[Info ] <Application::Application> Starting Shotcut version 18.03.06
[Info ] <Application::Application> Linux version
[Info ] <Application::Application> number of logical cores = 8
[Info ] <Application::Application> locale = QLocale(English, Latin, UnitedKingdom)
[Info ] <Application::Application> install dir = "/snap/shotcut/21/Shotcut.app/bin"
[Info ] <Application::Application> device pixel ratio = 1
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
[Warning] <> Could not initialize OpenGL for RasterGLSurface, reverting to RasterSurface.
[Debug ] <MainWindow::changeTheme> begin
[Debug ] <MainWindow::changeTheme> end
[Debug ] <MainWindow::MainWindow> begin
[Fatal ] <> Could not initialize OpenGL
Aborted (core dumped)