Problem running X-Window with SVGA 16bit colors

[Davide Anchisi <davide.anchisi@unito.it>]

Hi,

when trying to start X-Window in 16bit color mode an error message
appear saying that linear memory is required. What does it mean?
(I tryed changing resolution but this doesn't solve.)

I've a Tseng Labs ET4000 video card with 1024 kb memory on a 486 with
16Mb RAM and 32 Mb Swap.

 Do I need more RAM, more video memory or have I to change some setting
in XF86config? Or what else?

Thanks for any help.

    Davide