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Re: Problems with Matrox G400 AGP



On Fri, Nov 17, 2000 at 07:42:13PM -0200, Rogerio Theodoro de Brito wrote:
> 
> 	I've tried to use both XFree86 3.3.6 and 4.0.1e (Branden's
> 	packages from Debian) and after working for 2 or 3 *seconds*,
> 	the whole machine hangs *hard*: no desktop switching, no
> 	ctrl-alt-fx, no magic sysrq, no life, no nothing. :-(
> 
> 	But some strange facts actually happen:
> 
> 	1 - when using XFree with a low resolution, 640x480 with 16
> 	    colors (like when I'm running XF86Setup), everything works
> 	    ok;
> 
> 	2 - the *worst* part: windows works fine even with very, very
> 	    high resolutions and a considerable amount of time (I
> 	    don't have games here to test really intensive use of the
> 	    card).
> 
SNIP-------------

> (**) Mouse: 3 button emulation (timeout: 50ms)
> (**) SVGA: Graphics device ID: "Generic VGA"
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^             
> (**) SVGA: Monitor ID: "Monitor"
> (**) SVGA: Graphics device ID: "Matrox Millennium G400 16MB"
> (**) SVGA: Monitor ID: "My Monitor"
> (--) SVGA: detected an SGRAM card
> (--) SVGA: chipset:  mgag400
> (**) SVGA: videoram: 4096k
    ^^^^^^^^^^^^^^^^^^^^^^^^^^
> (**) SVGA: Option "dac_8_bit"

Reading the output of startx, it seems to be a server/memory-affair.
In the first underlined line, you can see that your default Xserver
is the "Generic Vga", while your videocard needs the SVGA server:
you have to re-run "xf86config" program (first you have to control
the installation of the XF86_SVGA server in /usr/X11R6/bin) and here
set XF86_SVGA server as the default.
With the same program you have also to correct the amount of your
videocard (in kb) : the second underlined line shows the amount of 4096k of
videoram while G400 has 16M.
I suggest you "xf86config" program also in XF...3.6 because for XF..4
i's the only configuration tool (if I remember well).

 Ciao
        paolo massei (and his rusted English ;))



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