命令行中的gtk gtk警告和错误

在最新版本的Ubuntu（11.10）中，当我从命令行运行时，每次打开窗口时，Gtk都会大声抱怨（多行）。问题显然与主题有关-如果我将默认设置从更改为Ambiance，则High-Contrast此设置将消失。一些例子：

travis@hydrogen:~$ emacs foo.txt
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(emacs:1550): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

travis@hydrogen:~$ evince test.pdf 
(evince:1566): GLib-GObject-WARNING **: g_object_set_valist: construct property "enable-gestures" for object `EvView' can't be set after construction
(evince:1566): Gdk-CRITICAL **: gdk_window_get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(evince:1566): Gdk-CRITICAL **: gdk_window_get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(evince:1566): Gdk-CRITICAL **: gdk_window_get_pointer: assertion `GDK_IS_WINDOW (window)' failed

我喜欢这些主题，但不想与他们分开。如何从Gtk修复命令行详细程度？我可以简单地破解命令行以过滤掉这些消息，但是我真的不喜欢这个想法。

可能相关

从以前的版本：如何摆脱奇怪的错误行...

这些Unable to locate theme engine in module_path: "pixmap"消息是一个已知的错误。

要修复它，请安装gtk2-engines-pixbuf 软件包

运行Evince时得到的警告是一个单独的错误。据我所知，目前还没有解决方案。