SuSE9.1, TNT2pro显卡,驱动已装好,mplayr per6, 编译安装,一切都好,就是调节亮度时报“Video attribute "brightness" is not supported by selected vo &vd. 看/var/log/XFree86.log里有”(II) Loading extension XVideo“。xvinfo也有内容,同样时SuSE9.1,装在笔记本上就能调亮度(mplayer per 5, NVIDIA 420go的显卡,驱动是用系统自带的),什么原因???