In article <1993Jul28.213242.24976@news.vanderbilt.edu> umar@compsci.cas.vanderbilt.edu (Sait Umar) writes:
quoted text
>
>I have an ATI Ultra with 1 MB memory. The machine is Dell 486DX2/50.
>At the boot, during the configuraiton of the graphics card, the 1 MB
>memory is correctly detected (I know I bought this which worked on
>Windows) but when I start X (Xfree 1.2) it reports memort of 512k and
>refuses the 1024x768 mode by saying not enough memory. I run it under
>800x600 mode with almost no problem. My screen seems to oscillate in a
>way that does not look exactly stable (slight flickerin). I would
>appreciate any help. I am running SLS 1.02 (.99pl9).
>-- 
>-------------------------------------------------------------------------
>umar@compsci.cas.vanderbilt.edu         Prof.A.S. Umar
>umarsa00@vuctrvax.bitnet                Department of Physics & Astronomy
>Tel: (615) 322-2459                     Vanderbilt University
>Fax: (615) 343-7263                     Nashville, TN 37235
>-------------------------------------------------------------------------

I had the same problem. It seems that the ATI board really does have only
512k in VGA mode. Fiddling with Xconfig will eventually get it to work.
As I recall, We started at the last clock entry and deleted lines until
it worked. The best solution however was to get the x8514a server from
one of the Linux archives and use that. It sees all of your 1meg and
will do 1024x768x256. Of course, you must have a monitor that supports
this.

        Mike Heidt
        heidt@aio.jsc.nasa.gov