Date: Tue, 3 Nov 1998 09:44:35 +1030 From: Greg Lehey <grog@lemis.com> To: "Foster, Jim" <JFOSTER@CSKAUTO.COM>, "'freebsd-questions@FreeBSD.ORG'" <freebsd-questions@FreeBSD.ORG> Subject: Re: Desperately trying to get X to work... Message-ID: <19981103094435.B354@freebie.lemis.com> In-Reply-To: <BF4A830F5207D2119420006008A1DB14DDC3B7@v128041.vandenberg.af.mil>; from Foster, Jim on Mon, Nov 02, 1998 at 09:34:33AM -0700 References: <BF4A830F5207D2119420006008A1DB14DDC3B7@v128041.vandenberg.af.mil>
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On Monday, 2 November 1998 at 9:34:33 -0700, Foster, Jim wrote: > Hi all, > > I am trying to get X to work on my computer, but I am not having much luck. > I have read the book (The Complete FreeBSD), I have read the errata, I have > downloaded and used the new chapter 8 of the book, I have looked at past > list archives....All with no luck. > > Basically what happens is when I configure and run X, I hear my monitor > click and then go black. I stays that way until I kill X, and cycle my > monitor off and on. This is an indication that X is trying to drive the monitor out of spec. It's turning off to avoid burning out. > I have an IBM ValuePoint computer (i486/66 DX2) with built-in S3 video. > SuperProbe reports: > First video: Super-VGA > Chipset: S3 86C805, C-step (Port Probed) > Memory: 1024 Kbytes > RAMDAC: AT&T 20C490 15/16/24-bit DAC > (with 6-bit wide lookup tables (or in 6-bit mode)) > (programmable for 6/8-bit wide lookup tables) > > For what it is worth, Win 95 reports that I have S3 video and that the > chipset is 801/805 Rev E. (Sidebar: In windows I can regularly use 800x600 > and 16-bit color with no problems). > > I have verified on the monitor manufacturer's web site what the horizontal > and vertical refresh rates are, so that part should be OK (it's not in the > monitors database). What are they? > When I configured X, it only presents me with three chipset options for S3. > Those are mmio_928, newmmio, and s3_generic. No 86C805! Because of all of > the "deadly warnings" about frying monitors AND chipsets, I have only > selected s3_generic so far. You're unlikely to fry that monitor. The "click and go black" is a good sign. And s3_generic should do it. > I have configured the memory for 1MB, and the RAMDAC (whatever that > is...) to att20c490, but I am not sure about the rest of the stuff > that SuperProbe spit out, like ...15/16/24-bit DAC... and the stuff > about lookup tables. I assume it has to do with color depth. > Finally, I also did not choose any clock chip support since > SuperProbe did not tell me any thing about clock chips. That should all be OK. > I had the config script run X -probeonly to put the clock lines into the > configuration. You should be able to leave out the clock lines. If X -probeonly finds them, it'll find them at startup too. > When I run startx, my monitor clicks, and goes black. > > As an experiment, I reconfigured X to use the SVGA server instead of S3 and > I can get that to work in 8-bit color mode only (looks _real_ ugly). As > soon as I try and use the SVGA configuration with something more than 8-bit > color...you guessed it, click-and-black. > > Am I suppose to use mmio_928 or newmmio? How do I know which one? Will it > hurt my computer if I try and it is wrong? What else do I need to look at? The first thing you need to look at is the information that X prints out when it starts. Since you have The Book, look at page 229, which shows you how to start X and capture this information. In particular, check the information that it outputs about horizontal frequencies. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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