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Tried manually to set the actual horiz and vertical refresh rate for my AOpen monitor but in doing so the display goes off-center and all I get on the screen is 800x600 screen size. All the other distros I tried (Knoppix,Mandrake,Peanut and vector) recognized my monitor during installation. I am wondering why Slackware 9 does not recognize it during install.
So any suggestions on how to configure slackware to correctly 'use' my AOpen p75 monitor?
HorizSync 30-121 #check your specs on the manual
VertRefresh 50-161 #check your specs on the manual
DisplaySize 406 305 # mm - check your specs on the manual
Option "DPMS" # most modern not fix freq monitor are dpms
# Option "SyncOnGreen" # my fix freq monitor
# ModeLine "1024x768/85Hz" 94.5 1024 1056 1152 1376 768 769 772 808 -HSync -VSync #Modeline is extremly optional
After you have a display at the resoultion you wished (such as 1024x768 @ 85 Hz), You can star xvidtune form command line when you are in xwindows.
Do the minor adjustment such as center the screen, adjust the width, and write down all the numbers on the screen. This number should go into ModeLine under monitor section.
It should be ModeLine "name" [pixelclock] [HDisplay] [HSyncStart] [HSyncEnd] [HTotal] [VDisplay] [VSyncStart] [VSyncEnd] [VTotal] -Hsync-Vsync
Well,the procedure 'xvidtune' solved my problem,thank you. But still my question is not answered: How to make slackware recognize my monitor at slackware install? I also use vector linux which is slackware based and it recognized my monitor woithout going thru 'xvidtune'. Should there be a kernel recompile? If so what to change in the config file?