ATI Mach64 ...

ATI Mach64 ...

Post by Eike Jon » Fri, 26 Jan 1996 04:00:00

Video Card:

ATI Graphics Expression 2MB VLB
RAMDAC:STG1702 ( J-13Z )   ##This is what's printed on the chip,SuperProbe
                                 reports the RAMDAC to be an AT&T20C498 !?
clockchip 18818 - 1
Chipset 88000GX
(ROM:113-27801-102   1994)

I got (as usual) Problems with the XF86_Mach64-server. I tried Versions
3.1.2, 3.1.2A, 3.1.2B. What's driving me crazy is that all probs that
are commented on the net are about Mach64-revisions with newer Ramdacs,
mine should work with any of the above servers. It doesn't and I'm not _so_

Any way I try to configure the accelerated server stops the computer.
Most of the possible configurations won't stop to write a .X.err-file,
if they do, it ends up with an unexpected signal 11, errno 13 (? I'm not so sure
the error code, I got no way of reproducing this as I'm using Windoze right
The screen just goes black, but the Monitor does not switch frequencies
and the Sync seems to stay (Monitor(Sony 15sf)does not switch into
Power-Saving). The Computer won't accept Ctrl+Alt+BS and mostly not
even ctrl+alt+del. I wonder if this has anything to do with the aperture
but I don't understand this feature as I find it allmost totally undocumented.
My Ram amounts to 8MB,I use Kernel 1.2.13 and the AcceleratedX-Demo works fine.

_ANY_ Hints?

Included is the output of X -probeonly.

XFree86 Version 3.1.2B / X Window System
(protocol Version 11, revision 0, vendor release 6001)
Release Date: Dec 28 1995
Operating System: Linux
Configured drivers:
  Mach64: accelerated server for ATI Mach64 graphics adaptors (Patchlevel 0)
(using VT number 7)

XF86Config: /etc/XF86Config
(**) stands for supplied, (--) stands for probed/default values
(**) Mouse: type: Microsoft, device: /dev/mouse, baudrate: 1200,
       3 button emulation (timeout: 50ms)
(**) Mach64: Graphics device ID: "ATI Xpression with STG1702 RAMDAC"
(**) Mach64: Monitor ID: "My Monitor"
(--) Mach64: Mode "1280x1024" needs hsync freq of 78.86 kHz. Deleted.
(--) Mach64: Mode "1280x1024" needs hsync freq of 81.13 kHz. Deleted.
(**) FontPath set to

(--) Mach64: card type: VESA LocalBus
(--) Mach64: Clock type: ATI18818-1/ICS2595
(--) Mach64: Maximum allowed dot-clock: 135.000 MHz
(**) Mach64: Mode "1280x1024": mode clock = 110.000
(**) Mach64: Mode "1024x768": mode clock =  85.000
(**) Mach64: Mode "800x600": mode clock =  50.000
(**) Mach64: Mode "640x480": mode clock =  31.500
(**) Mach64: Virtual resolution: 1280x1024
(--) Mach64: videoram: 2048k
(--) Mach64: Using hardware cursor

(--) Mach64: Ramdac is STG1702
(--) Mach64: Using 8 bits per RGB value



1. ATI Mach64 PCIQ: ATI Mach64 PCI, Xwindow problems ?

You should install XFree86 3.1.  Its Mono, VGA16 and SVGA servers include
(unaccelerated) support for Mach64's.  For an accelerated server, you'll
have to wait until XFree86 >=3.2.

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