Set up Solaris 8 ,I met the problem that the I can't login the GUI.
Anyway I can run command lines on it.
So I run as follow,
# prtconf -pv > /tmp/prt # less /tmp/prt
Looking for the video information ,then I get the ATI infor.
(NOTE:Only these info is not enough .And you have to google more info about Host machine and Monitor .So you'd better run kdmconfig ,then to copy a config-copy in case lose the original configuration after you get the GUI successfully)
And the monitor infor should search on google .
Then run kdmconfig to configure the Video Devices :
Configuration of Video Device on S8 X86
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Video Device: ATI RAGE 128 / RAGE 128 PRO / RADEON (32-64MB)
Screen Size :16-inch (41cm)
Resolution / Colors /Refresh Rate: 1024 X 768 -256 Colors @75Hz
Monitor Type :Plug and Play Mfreq 16 inch DELA004(up to 1024 X 768 @75Hz)
KeyboardType:Genetic US-English (104-Key)
Pointing Device: USB Mouse
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This is only a method .