Date: Fri, 15 May 1998 15:27:52 -0500 (EST) From: "John S. Dyson" <dyson@FreeBSD.ORG> To: dawes@rf900.physics.usyd.edu.au (David Dawes) Cc: dyson@FreeBSD.ORG, sos@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: People having problems with X windows? Message-ID: <199805152027.PAA03022@dyson.iquest.net> In-Reply-To: <19980515224353.26233@rf900.physics.usyd.edu.au> from David Dawes at "May 15, 98 10:43:53 pm"
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David Dawes said: > > What were you using to determine when to enable WC? > I was using the MEMORY (and MEMORYP) map flag in the pci config. I mistakenly added a heuristic that on a video adaptor that didn't have any prefechable regions that the one memory region that wasn't really was. (I have an S3 adaptor that didn't sense the memory properly and it specified that none of the memory was prefetchable, so I added the heuristic.) Of course, what I did was wrong. A simple check for prefechable regions only would have likely worked, but I wanted something better :-(. Do you have any "neat tricks" to work around errant info given by display adaptors (like the Motion 771???) (It specifies no prefechable regions.) -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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