[DuoList] Duo 280c Graphics/Display Granularity

[Clark Martin]

At 2:00 PM +0000 2/22/05, Samual Acorn wrote:
>is there no hack to get the 280c to show 640x480x16bpp? (if it has
>enough vram for it there -has- to be -something- that can be done in
>software to force it into that mode)
>
>
>On Tue, 22 Feb 2005 07:09:13 -0500, Tom and Lisa P
><gionpeters at comcast.net> wrote:
>>  >>
>>  >
>>  >Check to see what your color depth is.  256 colors can do this if
>>  >you have a picture up on the display (including a desktop picture).
>>  >Since you only have 256 colors to display and a picture can use a
>>  >lot more than 256 colors it has to share some colors making the
>>  >display grainy.  You can switch to thousands of colors but it will
>  > >limit the display to 640x400 instead of 640x480.


It doesn't have the VRAM to do it.  It only has 512Kb of VRAM. 
640x480 is 300K pixels.  To go to thousands of colors at 640x480 you 
need 600K of VRAM.  To do 640x400 at thousands of colors you need 
just under 512Kb of VRAM so it dis do able.
-- 
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

"I'm a designated driver on the Information Super Highway"