[rescue] SGI Octane, LCD?

Joshua Boyd jdboyd at jdboyd.net
Mon May 24 16:04:26 CDT 2010

On Mon, May 24, 2010 at 03:49:10PM -0400, Andrew Jones wrote:

> As someone else mentioned, widescreen resolutions are a real pain in the
> butt on SGIs.  Worse, some VPro graphics have hardware bugs that make certain
> sync ranges impossible to output.  I would search the nekochan forums for 
> details.  If the particular output you want is possible, it's easy to copy
> someone else's configuration work.

The impossible sync ranges heavily effected people with non-widescreen
LCD monitors, not just the ones with widescreen.

The V6 and V8 graphics can't pixel clocks of 109-193Mhz, although it
isn't strictly the pixel clock because 16bpp vs. 8bpp plays into it as

By my calculations (and some post on Nekochan will probably confirm or
refute this), 1680x1050, 60hz, 16bpp will work where 1280x1024, 60hz,
16bpp will not work.

I ended up skipping from SE to V10, so I don't have first hand
experience with this short coming.

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