any way to get the vesa driver to display more than 1024x768?

i'm having troubles getting opensolaris (b36) to work on a toshiba satellite 
a100-155 laptop with an ati x1600 video card.
as far as i can see there's no driver for this video card, anyway since i'm not 
interested in graphic are acceleration or other stuff, the generic vesa driver 
would be good too for me.
anyway it seems that by using the generic vesa driver, i can't have resolutions 
greater than 1024x768... since my lcd is a wide 15.4" 1280x800, this results in 
an ugly display resizing which causes the fonts to look like "out-of-focus" and 
the overall display to have the wrong aspect ratio.
Is there a way to get a 1280x800 resolution by using the vesa driver?
If not, how can i get it?
(i tried with bot Xsun and Xorg but i got the same result, i also tried other 
drivers than the vesa one, but they just hang)
 
 
This message posted from opensolaris.org