Hi everybody. I removed kde and it's applications from an Artix Plasma fresh installation and installed cinnamon instead. Now some gui apps won't get started. Running them (vlc, falkon etc.) in cli ends up in this glib critical errors:
eli-pc:[eli]:~$ vlc
VLC media player 3.0.16 Vetinari (revision 3.0.13-8-g41878ff4f2)
[0000560f72c1e580] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
(vlc:5801): GLib-GObject-WARNING **: 03:38:59.120: cannot register existing type 'GdkDisplayManager'
(vlc:5801): GLib-CRITICAL **: 03:38:59.120: g_once_init_leave: assertion 'result != 0' failed
(vlc:5801): GLib-GObject-CRITICAL **: 03:38:59.120: g_object_new_with_properties: assertion 'G_TYPE_IS_OBJECT (object_type)' failed
(vlc:5801): GLib-GObject-WARNING **: 03:38:59.120: invalid (NULL) pointer instance
(vlc:5801): GLib-GObject-CRITICAL **: 03:38:59.120: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(vlc:5801): GLib-GObject-WARNING **: 03:38:59.120: invalid (NULL) pointer instance
(vlc:5801): GLib-GObject-CRITICAL **: 03:38:59.120: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(vlc:5801): GLib-GObject-WARNING **: 03:38:59.121: cannot register existing type 'GdkDisplay'
(vlc:5801): GLib-CRITICAL **: 03:38:59.121: g_once_init_leave: assertion 'result != 0' failed
(vlc:5801): GLib-GObject-CRITICAL **: 03:38:59.121: g_type_register_static: assertion 'parent_type > 0' failed
(vlc:5801): GLib-CRITICAL **: 03:38:59.121: g_once_init_leave: assertion 'result != 0' failed
(vlc:5801): GLib-GObject-CRITICAL **: 03:38:59.121: g_object_new_with_properties: assertion 'G_TYPE_IS_OBJECT (object_type)' failed
Segmentation fault
Tried full upgrading system as a blind workaround, followed arch wiki cinnamon installation walkthrough, as long as some others solutions according to other forums, but no chance to get rid of it.
Does starting vlc as
QT_QPA_PLATFORMTHEME=fusion vlc
solve the problem?
https://stackoverflow.com/questions/61509812/issue-glib-gobject-warning-cannot-register-existing-type-gdkdisplaymanager (https://stackoverflow.com/questions/61509812/issue-glib-gobject-warning-cannot-register-existing-type-gdkdisplaymanager)
Some sort of GTK version definition in some QT config file somewhere?
(VLC is definitely working OK for me at present.)