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------- Additional Comments From [EMAIL PROTECTED]  2006-10-30 17:52 -------
(In reply to comment #15)
> 
> Thanks - I should have stuck to IRC, cause I knew this would be a wontfix and
> merely wanted help with trying to debug it on my own.
> 
> It wasn't my intent to start this discussion about disabling the option, I
> personally think that despite the pain of having to tell users that 
> AGPFastWrite
> is a bad idea, they should still have the choice of trying it out, so making 
> the
> option a no-op is not nice.  Worse, if you make it a no-op, users will 
> actually
> think that it worked, and misinformation of already not very well informed 
> users
> doesn't sound like a well thought out plan either.

I'm sorry we sound so discouraging, but I guess we're a bit jaded.  Too many
users complain the driver in broken only to reveal much later (after much wasted
developer time) that they have fastwrites turned on.  As such it's a bit of a
knee-jerk reaction.  The problem is, there's not really a good way to debug
this.  There have been several suggestions, but the problem is it locks up bad
and years later still no one knows why.  You could try and track down what fglrx
does (if anything) by dumping the radeon and AGP chipset regs.  Since you
haven't had much luck with conventional software means, you may need access to
hardware analyzers or unpublished chipset errata.  Perhaps others with more AGP
chipset-side knowledge have some ideas.  
          
     
     
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