Date: Mon, 2 Nov 98 18:31:56 +0100 From: Thierry.Herbelot@alcatel.fr To: JFOSTER@CSKAUTO.COM Cc: freebsd-questions@FreeBSD.ORG Subject: Desperately trying to get X to work... Message-ID: <H000057c019a4fb9@MHS> In-Reply-To: <BF4A830F5207D2119420006008A1DB14DDC3B7@v128041.vandenberg.af.m>
next in thread | previous in thread | raw e-mail | index | archive | help
Hello, I don't know if this wil help you : I've got an HP 486-DX2 machine with built-in graphics based on an S3 chipset (don't remember which) the DAC is advertised as a '490 but the code in the X server does not support this in combination with S3 chips. So I cheated : the DAC is described in my XF86config as an "att20c498" which is supported with the S3 chips. I usually first start this computer under Lo$e3.11 to setup correctly the values in the internal registers of the '490 (1024x768). Then I warm-reboot under FreeBSD / XFree86 and i get a good display. Hope this is not frightening. TfH > 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. > > 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). > > 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. 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. > > I had the config script run X -probeonly to put the clock lines into the > configuration. > > 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? > > Thanks, and please be sure to cc directly to me since I don't subscribe to > FreeBSD-questions because of the high volume. > > Jim > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?H000057c019a4fb9>