升级KDE3.4后发现无法设置窗口行为任务栏为透明

honeymoon

升级KDE3。4后，发现控制中心－》桌面－》窗口行为－》透明的Alpha Channel Support无法启动。
错误报告：
It seems that alpha channel support is not available.

Please make sure you have Xorg ≥ 6.8, and installed the kompmgr that came with kwin.
Also, make sure you have the following entries in your XConfig (e.g. /etc/X11/xorg.conf):

Section "Extensions"
Option "Composite" "Enable"
EndSection

And if your GPU provides hardware-accelerated Xrender support (mainly nVidia cards):

Option "RenderAccel" "true"
In Section "Device"
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樱家冢

。。。。。。
楼上的有没有把XFree86改成xorg？如果没有当然是不行的。