Hang on startup

[Andrew Goodbody]

OK, found the issue. I had to unset QT_QPA_PLATFORMTHEME.

I had had to set QT_QPA_PLATFORMTHEME=gtk2 previously.

Andrew

On 14/01/18 01:43, Gilles Caulier wrote:
> Hi,
> 
> Look like you have a problem with Qt/GTK widgets style from your system.
> 
> I recommend to test with the Linux AppImage that we provide. It must 
> work as weel. It do no install anything on your system and it will 
> quickly confirm that the problem is not in digiKam.
> 
> Best
> 
> Gilles Caulier
> 
> 2018-01-13 23:43 GMT+01:00 Andrew Goodbody <ajg02 at elfringham.co.uk 
> <mailto:ajg02 at elfringham.co.uk>>:
> 
>     Digikam 5.8.0 built from source on Debian testing. It hangs on
>     startup, no splash screen seen, have left it for hours with no
>     change. Used to start up OK.
>     Log from gdb session. Had to press Ctrl-C to get attention.
> 
>     $ gdb digikam
>     GNU gdb (Debian 7.12-6+b1) 7.12.0.20161007-git
>     Copyright (C) 2016 Free Software Foundation, Inc.
>     License GPLv3+: GNU GPL version 3 or later
>     <http://gnu.org/licenses/gpl.html <http://gnu.org/licenses/gpl.html>>
>     This is free software: you are free to change and redistribute it.
>     There is NO WARRANTY, to the extent permitted by law.  Type "show
>     copying"
>     and "show warranty" for details.
>     This GDB was configured as "x86_64-linux-gnu".
>     Type "show configuration" for configuration details.
>     For bug reporting instructions, please see:
>     <http://www.gnu.org/software/gdb/bugs/
>     <http://www.gnu.org/software/gdb/bugs/>>.
>     Find the GDB manual and other documentation resources online at:
>     <http://www.gnu.org/software/gdb/documentation/
>     <http://www.gnu.org/software/gdb/documentation/>>.
>     For help, type "help".
>     Type "apropos word" to search for commands related to "word"...
>     Reading symbols from digikam...done.
>     (gdb) run
>     Starting program: /usr/bin/digikam
>     [Thread debugging using libthread_db enabled]
>     Using host libthread_db library
>     "/lib/x86_64-linux-gnu/libthread_db.so.1".
>     [New Thread 0x7fffacfcb700 (LWP 2840)]
>     [New Thread 0x7fffac7ca700 (LWP 2841)]
>     [New Thread 0x7fffaa4a6700 (LWP 2842)]
>     [New Thread 0x7fffa3fff700 (LWP 2843)]
>     [New Thread 0x7fffa37fe700 (LWP 2844)]
> 
>     (digikam:2800): GLib-GObject-WARNING **: cannot register existing
>     type 'GtkWidget'
> 
>     (digikam:2800): GLib-GObject-CRITICAL **:
>     g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE
>     (instance_type)' failed
> 
>     (digikam:2800): GLib-GObject-WARNING **: cannot register existing
>     type 'GtkBuildable'
> 
>     (digikam:2800): GLib-GObject-CRITICAL **:
>     g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE
>     (interface_type)' failed
> 
>     (digikam:2800): GLib-CRITICAL **: g_once_init_leave: assertion
>     'result != 0' failed
> 
>     (digikam:2800): GLib-GObject-CRITICAL **:
>     g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE
>     (instance_type)' failed
> 
>     (digikam:2800): GLib-GObject-CRITICAL **: g_type_register_static:
>     assertion 'parent_type > 0' failed
>     ^C
>     Thread 1 "digikam" received signal SIGINT, Interrupt.
>     syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>     38      ../sysdeps/unix/sysv/linux/x86_64/syscall.S: No such file or
>     directory.
>     (gdb) bt
>     #0  0x00007fffe3035da9 in syscall () at
>     ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>     #1  0x00007fffe2ab46df in g_cond_wait () at
>     /lib/x86_64-linux-gnu/libglib-2.0.so.0
>     #2  0x00007fffe2a967b7 in g_once_init_enter () at
>     /lib/x86_64-linux-gnu/libglib-2.0.so.0
>     #3  0x00007fffa9068495 in gtk_buildable_get_type ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #4  0x00007fffa9097217 in gtk_container_get_type ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #5  0x00007fffa9063ffd in gtk_bin_get_type ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #6  0x00007fffa90922cc in gtk_combo_box_get_type ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #7  0x00007fffa909533c in gtk_combo_box_entry_get_type ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #8  0x00007fffa9095489 in gtk_combo_box_entry_new ()
>          at /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
>     #9  0x00007fffa29d1210 in  ()
>          at /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/libqgtk2style.so
>     #10 0x00007fffa29d246b in  ()
>          at /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/libqgtk2style.so
>     #11 0x00007fffe73541c3 in QStyleFactory::create(QString const&) ()
>          at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
>     #12 0x00007fffe72ea04a in QApplication::style() ()
>          at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
>     #13 0x00007fffe72ea39d in QApplicationPrivate::initialize() ()
>          at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
>     #14 0x00007fffe72ea3f4 in QApplicationPrivate::init() ()
>          at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
>     #15 0x000055555555a02e in main(int, char**) (argc=1,
>     argv=0x7fffffffe278)
>          at /home/ag/src/dk5/core/app/main/main.cpp:70
>     (gdb)
> 
>