Xserver not display

I have this Xserver not display issues, I try search from the forum but found out it can have different errors from the Xerrors logs. Here I upload and hope admin can help.

root@ccs # more Xerrors
The loadable module for the display device SUNWast is not installed.

Fatal server error:
InitOutput: Error loading module for /dev/fb

vice /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

Tue Oct 23 12:52:58 2012
error (pid 1993): Server for display :0 terminated unexpectedly 1
fbconsole: ioctl SRIOCSREDIR: Invalid argument
/dev/fb: No such file or directory
/dev/fb: No such file or directory
Graphics Adapter device /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

e[7m--More--(1%)e[m
Tue Oct 23 12:52:59 2012
error (pid 1993): Server for display :0 terminated unexpectedly 1
fbconsole: ioctl SRIOCSREDIR: Invalid argument
/dev/fb: No such file or directory
/dev/fb: No such file or directory
Graphics Adapter device /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

Tue Oct 23 12:52:59 2012
error (pid 1993): Server for display :0 terminated unexpectedly 1
fbconsole: ioctl SRIOCSREDIR: Invalid argument
/dev/fb: No such file or directory
/dev/fb: No such file or directory
Graphics Adapter device /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

e[7m--More--(3%)e[m
Tue Oct 23 12:53:00 2012
error (pid 1993): Server for display :0 terminated unexpectedly 1

Tue Oct 23 12:53:00 2012
error (pid 1993): Server for display :0 can't be started.

Tue Oct 23 13:24:47 2012
error (pid 700): Server for display :0 terminated unexpectedly 1
fbconsole: ioctl SRIOCSREDIR: Invalid argument
/dev/fb: No such file or directory
/dev/fb: No such file or directory
Graphics Adapter device /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

Tue Oct 23 13:24:48 2012
error (pid 700): Server for display :0 terminated unexpectedly 1
fbconsole: ioctl SRIOCSREDIR: Invalid argument
/dev/fb: No such file or directory
/dev/fb: No such file or directory
e[7m--More--(5%)e[m
Graphics Adapter device /dev/fb is of unknown type

Fatal server error:
InitOutput: Error loading module for /dev/fb

Beside the package SUNWast is not install, can this cause by any other reason as well?

Thanks.

your issue looks very much like you do not have a graphics card that Xwindows recognizes ... it might just be a driver issue so installing the SUNWast package might help or it could actually be a hardware issue and you need to replace the defective graphics card ... try installing the missing package first as that is the easier and cheaper option ...