XFree86 and ISA Stealth VRAM (1MB)

XFree86 and ISA Stealth VRAM (1MB)

Post by Gary McKinn » Tue, 27 Feb 1996 04:00:00



Hi.

CONFIGURATION

486DX50, 8MB RAM
ISA Diamond Stealth VRAM (1MB), circa 1992
Viewsonic 7 (17") monitor
Slackware 3.0
Kernel 1.2.13
40MB swap partition

PROBLEM

XFree86 runs fine in 640x480x256 mode (with a virtual viewing area), but I
want to run in full-screen 1024x768 or at least 800x600.  I've looked
through the various monitor and video mode docs on the CD and have noted
the dot timings and scan line numbers for my video card and monitor.  I've
tried them all, but I get nothing but a scrambled screen.

NOTE:  When I ran xf86config, the timings were either 25.x or 28.x.  I saw
NO timings higher than 28.x.

Am I stuck at 640x480?  Your help is mucho appreciated :-).

Gary

 
 
 

XFree86 and ISA Stealth VRAM (1MB)

Post by Jeroen Valkone » Wed, 28 Feb 1996 04:00:00


Ever since I got the 3.1.2 X-Server I no longer have had any
problems with my Diamond Stealth ISA (albeit 1MB DRAM instead
of VRAM). I simply ran xf86config to create me an
/etc/XF86config file and up it came.
--
Greetings, Jeroen.

 
 
 

XFree86 and ISA Stealth VRAM (1MB)

Post by Grant Edwar » Thu, 29 Feb 1996 04:00:00


: ISA Diamond Stealth VRAM (1MB), circa 1992

: PROBLEM

[...]

: NOTE:  When I ran xf86config, the timings were either 25.x or 28.x.  I saw
: NO timings higher than 28.x.

You have a programmable clock chip, so probing doesn't work.  You need to
tell it which clock chip you have.  Assuming you have the same chips as do I
(you can look at the board and see), try this:

----------------------------------------------------------------------
Section "Device"
    Identifier  "Diamond Stealth VRAM"
    VendorName  "Diamond"
    BoardName   "Stealth VRAM"
    Chipset     "s3_generic"
    Ramdac      "sc11482"
    ClockChip   "dcs2824"
    VideoRam     1024
EndSection

Section "Monitor"
    Identifier  "CTX-something"
    VendorName  "CTX"
    ModelName   "Unknown"
    Bandwidth    100
    HorizSync    30-60
    VertRefresh  50-90
    ModeLine "640x480" 31.500   640  664  704  832    480  489  492  520
    ModeLine "800x600" 50.000   800  856  976 1040    600  637  643  666
    ModeLine "1024x768" 75.000  1024 1048 1184 1328    768  771  777  806
EndSection

Section "Screen"
    Driver    "accel"
    Device    "Diamond Stealth VRAM"
    Monitor   "CTX-something"
    Subsection "Display"
        Depth    8
        Modes    "1024x768" "800x600" "640x480"
        ViewPort 0 0
        Virtual 1024 768
    EndSubsection
EndSection
----------------------------------------------------------------------

You can try other ModeLine entryies if you want -- as far as I can tell you
can pick whatever dot-clock you want.

--
Grant Edwards        | Microsoft isn't the   | Yow!  I'm reporting for duty
Rosemount Inc.       | answer. Microsoft     | as a modern person.  I want
                     | is the question, and  | to do the Latin Hustle now!

 
 
 

1. DIAMOND STEALTH VRAM - ISA 1MB (XF86Config)

Thanks for those who e-mailed or replied to my last post but I don't have the solution yet!

If the kind soul at at&t who replied that he had the same board working at home is still out
there (and didn't get my e-mail yet) I would appreciate hearing from you...

To emphasize - this is an old ISA board that only goes up to 1MB on board, not one of the
newer DIAMOND products.

P.S. If you do have one of these and have a dual-boot with Windows get the newest beta
drivers on www.diamondmm.com, they are much faster than the versions that come with
the board.

Randolf


C| Klatt Consulting Inc.                       http://www.softaid.net/rklatt
I| (410) 997-8534  FAX (410) 715-6537
(c) 1996 All rights reserved. Permission to redistribute available on request.

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