Intresting X Question...

[Eric Murphy]

Malcolm Kay wrote:

>On Wed, 16 Nov 2005 03:31 pm, Eric Murphy wrote:
>  
>
>>Maybe some body can explain this alittle better then my google
>>searchs and other readings.
>>
>>My question is this: Lets say your installing BSD on some
>>workstation, you dont know the hardware specs of the monitor
>>(Vertical and Horizontal rates ect..) and you need to
>>configure Xorg. Its my understanding that Xorg runs getconfig,
>>which determines the video card type and monitor type. Once it
>>has that information it applys the information gatherd to the
>>xorg config. Is that how it works? I was going to say, it cant
>>just test a bunch of differnt monitor rates that could cause
>>damage to the monitor.
>>
>>    
>>
>
>Most modern monitors respond to Xorg's enquiry over an I2C bus
>as to its capabilities.
>If this doesn't work then maybe:
>* The monitor is too old.
>* The monitor doesn't subscribe to the 'standards'.
>* Somehow the I2C bus is not working.
>* The monitor manufacturer was overly optermistic when setting
>up the information base for reporting over I2C
>
>It is not a trial and error situation.
>
>Malcolm
>
>  
>
>>However today in one of our labs I installed bsd on a machine
>>and was unable to get xorg working properly becuase getconfig
>>wasnt issueing the correct H and V rates for the monitor, I
>>didnt know what to do without having to look it up. Anyway if
>>someone could explain this process I would be much obliged.
>>Thanks
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>>    
>>
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>  
>

If thats the case, why did it work with linux running Xorg?  So I guess 
the main way to do it, if you want to figure out the values, is look at 
the example xorg.conf and see what values it pulled?