GTK 应用程序无法启动 - 需要 xfs 重新启动选项

在最近一次更新之后（Xorg 也被更新了），GTK 应用程序停止在我的 kde4 中运行。我有一个不稳定的 Debian，4 月 22 日左右更新。当我尝试运行它们时，出现以下错误：

ga@grzes:~$ iceweasel 
The program 'firefox-bin' received an X Window System error. 
This probably reflects a bug in the program. 
The error was 'BadName (named color or font does not exist)'. 
  (Details: serial 888 error_code 15 request_code 45 minor_code 0) 
  (Note to programmers: normally, X errors are reported asynchronously; 
   that is, you will receive the error a while after causing it. 
   To debug your program, run it with the --sync command line 
   option to change this behavior. You can then get a meaningful 
   backtrace from your debugger if you break on the gdk_x_error() function.) 
ga@grzes:~$ gimp The program 'gimp' received an X Window 
System error. 
This probably reflects a bug in the program. 
The error was 'BadName (named color or font does not exist)'. 
  (Details: serial 6955 error_code 15 request_code 45 minor_code 0) 
  (Note to programmers: normally, X errors are reported asynchronously; 
   that is, you will receive the error a while after causing it. 
   To debug your program, run it with the --sync command line 
   option to change this behavior. You can then get a meaningful 
   backtrace from your debugger if you break on the gdk_x_error() function.) 


(script-fu:4643): LibGimpBase-WARNING **: script-fu: gimp_wire_read(): 
error

我必须手动重新启动字体服务器才能修复它：

ga@grzes:~$ su 
Password: 
grzes:/home/ga# /etc/init.d/xfs restart 
Stopping X font server: xfs. 
Setting up X font server socket directory /tmp/.font-unix...done. 
Starting X font server: xfs.

有什么想法可能是错的吗？是配置问题吗？我的系统已经更新了 7 年，所以我可以有一些旧的设置。

编辑：如果有人能将我指向相关的讨论列表或 bugzilla 站点，我将不胜感激，因为我遇到了这个问题。