8.04 安装xgl出错

[unliang]

我的6100集成显卡在xorg+compiz下一用xv播放视频就会假死（鼠标能动，别的都不能动，但过几十秒就能动了，有时不放视频也会出现这个问题），今天试着安装了xgl，开机后出现了下面这段话：
启动 GNOME 设置守护进程时出错。
主题、声音或者背景设置等可能不会正常工作。
设置守护进程重新启动的次数太多。
GNOME 在您下次登录时仍将试图重启动设置守护进程

登录后xv能在compiz下使用了。可主题和字体就一踏糊涂了,小键盘了不能用了。
试着运行gnome-settings-daemon得到如下信息：
:~$ sudo gnome-settings-daemon
The program 'gnome-settings-daemon' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadRequest (invalid request code or no such operation)'.
(Details: serial 89 error_code 1 request_code 151 minor_code 6)
(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.)
liliang@liliang-desktop:~$

求高人给分析分析是怎么回事。我重启了多次都 一样，我还试着建立了新用户也是一样的情况。