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【DM版本】:
【操作系统】：
【CPU】:
【问题描述】*：

(Manager:8792): GLib-GObject-WARNING **: 16:41:49.148: invalid (NULL) pointer instance

(Manager:8792): GLib-GObject-CRITICAL **: 16:41:49.148: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(Manager:8792): Gtk-CRITICAL **: 16:41:49.149: IA__gtk_settings_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed

(Manager:8792): Gtk-WARNING **: 16:41:49.150: Screen for GtkWindow not set; you must always set
a screen for a GtkWindow before using the window
[root@localhost db_full_bak_09]# export DISPLAY=:0
[root@localhost db_full_bak_09]# xhost +
xhost:  unable to open display ":0"
[root@localhost db_full_bak_09]# echo $DISPLAY
:0