执行sudo gedit /etc/environment 后显示结果如下。打开其他文件也是一样
- using device default
- using device default

** (gedit:8328): CRITICAL **: gedit_mdi_set_state: assertion `GEDIT_IS_MDI (mdi)' failed

(gedit:8328): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `BonoboMDI'

** (gedit:8328): CRITICAL **: bonobo_mdi_get_active_child: assertion `BONOBO_IS_MDI (mdi)' failed

(gedit:8328): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `BonoboMDI'

** (gedit:8328): CRITICAL **: bonobo_mdi_get_active_window: assertion `BONOBO_IS_MDI (mdi)' failed

** (gedit:8328): CRITICAL **: gedit_utils_set_status: assertion `BONOBO_IS_WINDOW (win)' failed

** (gedit:8328): CRITICAL **: gedit_prefs_manager_get_int: assertion `gedit_prefs_manager->gconf_client != NULL' failed

** (gedit:8328): CRITICAL **: gedit_prefs_manager_get_bool: assertion `gedit_prefs_manager->gconf_client != NULL' failed

** (gedit:8328): CRITICAL **: gedit_prefs_manager_get_bool: assertion `gedit_prefs_manager->gconf_client != NULL' failed

** (gedit:8328): CRITICAL **: gedit_prefs_manager_get_int: assertion `gedit_prefs_manager->gconf_client != NULL' failed

(gedit:8328): GLib-GObject-WARNING **: invalid uninstantiatable type `glong' in cast to `GObject'

(gedit:8328): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `glong'

(gedit:8328): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
我用的是5.10版

用root权限就可以编辑，但是启动超慢

最近好几个相同的帖子。建议搜索。“sudo gedit scim”3个项目。