版本是12.12

wmz@wmz-GA-MA78GM-US2H:~$ sudo apt-get install gdb -y
[sudo] password for wmz:
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建议安装的软件包：
  gdb-doc gdbserver
下列【新】软件包将被安装：
  gdb
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需要下载 2,265 kB 的软件包。
解压缩后会消耗掉 6,006 kB 的额外空间。
获取：1 http://packages.linuxdeepin.com/ubuntu/ raring/main gdb i386 7.6~20130417-0ubuntu1 [2,265 kB]
下载 1,302 kB，耗时 4秒 (303 kB/s)
Selecting previously unselected package gdb.
(正在读取数据库 ... 系统当前共安装有 165648 个文件和目录。)
正在解压缩 gdb (从 .../gdb_7.6~20130417-0ubuntu1_i386.deb) ...
正在处理用于 menu 的触发器...
正在处理用于 man-db 的触发器...
正在设置 gdb (7.6~20130417-0ubuntu1) ...
正在处理用于 menu 的触发器...
localepurge: Disk space freed in /usr/share/locale: 0 KiB
localepurge: Disk space freed in /usr/share/man: 0 KiB
localepurge: Disk space freed in /usr/share/gnome/help: 0 KiB
localepurge: Disk space freed in /usr/share/omf: 0 KiB

Total disk space freed by localepurge: 0 KiB

wmz@wmz-GA-MA78GM-US2H:~$ cd /usr/share/deepin-system-tray/src/
wmz@wmz-GA-MA78GM-US2H:/usr/share/deepin-system-tray/src$ gdb python
GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
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 "i686-linux-gnu".
For bug reporting instructions, please see:
...
Reading symbols from /usr/bin/python2.7...(no debugging symbols found)...done.
(gdb) r ./trayicon.py
Starting program: /usr/bin/python2.7 ./trayicon.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display
  warnings.warn(str(e), _gtk.Warning)
/usr/share/deepin-system-tray/src/vtk/constant.py:29: GtkWarning: IA__gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_font_description: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_base_dir: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_language: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
Traceback (most recent call last):
  File "./trayicon.py", line 28, in
    from trayicon_plugin_manage import PluginManage
  File "/usr/share/deepin-system-tray/src/trayicon_plugin_manage.py", line 25, in
    from vtk.utils import init_config, get_config_file
  File "/usr/share/deepin-system-tray/src/vtk/utils.py", line 23, in
    from constant import DEFAULT_FONT, DEFAULT_FONT_SIZE
  File "/usr/share/deepin-system-tray/src/vtk/constant.py", line 32, in
    DEFAULT_FONT = get_system_font()
  File "/usr/share/deepin-system-tray/src/vtk/constant.py", line 29, in get_system_font
    font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
AttributeError: 'NoneType' object has no attribute 'get_font_description'
[Inferior 1 (process 3433) exited with code 01]
(gdb) r ./trayicon.py
Starting program: /usr/bin/python2.7 ./trayicon.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display
  warnings.warn(str(e), _gtk.Warning)
/usr/share/deepin-system-tray/src/vtk/constant.py:29: GtkWarning: IA__gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_font_description: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_base_dir: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
/usr/share/deepin-system-tray/src/vtk/constant.py:29: PangoWarning: pango_context_set_language: assertion `context != NULL' failed
  font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
Traceback (most recent call last):
  File "./trayicon.py", line 28, in
    from trayicon_plugin_manage import PluginManage
  File "/usr/share/deepin-system-tray/src/trayicon_plugin_manage.py", line 25, in
    from vtk.utils import init_config, get_config_file
  File "/usr/share/deepin-system-tray/src/vtk/utils.py", line 23, in
    from constant import DEFAULT_FONT, DEFAULT_FONT_SIZE
  File "/usr/share/deepin-system-tray/src/vtk/constant.py", line 32, in
    DEFAULT_FONT = get_system_font()
  File "/usr/share/deepin-system-tray/src/vtk/constant.py", line 29, in get_system_font
    font_name = ' '.join(str(font_widget.get_pango_context().get_font_description()).split(" ")[0:-1])
AttributeError: 'NoneType' object has no attribute 'get_font_description'
[Inferior 1 (process 3438) exited with code 01]
(gdb)

把你上面的输出去bug管理反馈把,毕竟是你的系统出了问题,你来反馈,跟踪问题会比较方便