Re: problem with resolution on ultra 5
On Saturday 19 August 2006 10:55, Steve Pacenka wrote:
> On Friday 18 August 2006 15:59, zagi wrote:
> > Hi,
> > I installed Debian Sarge on my ultra 5. It has ATI Technologies, Inc. 3D
> > Rage I/II 215GT [Mach64 GT] graphic card. Max resolution that I can set
> > in XF86Config-4 800x600. If I set any higher resolution Xserver will not
> > start.
>
> It's possible that you have the earlier U5/10 motherboard that has 2M VRAM;
> later ones have 4M. 2M VRAM is not enough to support more than 800x600 at
> 24 bits. Cut back to 15 or 16 bits depth and you can get to at least
> 1024x768, and possibly to 1280x1024.
My reply was not completely right. Of course 1280x1024 will only work at 8
bits depth within 2M VRAM ...
The ATI Rage chipset supports other resolutions; perhaps 1152x900 or 1280x800
will work at 15/16 bits. See the Sparc Framebuffer FAQ.
-- SP
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