debian 4.0 安装系统以后无法进入桌面系统

pyyxr

failed to start the x server(your graphicalinterface).It is likely the it is not setup correctly. would you like to view the x server output to diagnose the problem



X Windows System Version 7.1.1
Release Date:12 May 2006
X Protocol Version 11,Revision 0,Release 7.1.1
Build Operating system:UNKNOWN
current operating system:liux dqjk1 2.6.18-6-686#1 SMP Sun Feb 10 22:11:31UTC 2008 i686
bUILD dATE: 24 January 2008

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Module Loader present
Markers--)probed,(**)from config file,(==)default setting,(++)from command line,(!!)notice,(II)informational,

(WW)warning,(EE)error,(NI)not implemented,(??)unknown.
(==)Log file:"/var/log/xorg.0.log",Time:Tue Mar 16 23:14:10 2010
(==)Using config file:"/etc/X11/xorg.conf"
(ee) No devices detected.

Fatal server error:
no screens found