Screen Resolution for Per Window Stereo

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Clement K. Tam (ctam++at++risc.rockwell.com)
Mon, 25 Aug 1997 09:47:44 -0700

Hello,

I have recently downloaded a Performer based stereo.c from:
www.sgi.com/Technology/Performer/goodies.html

It works well on my dual monitor Onyx w/ IR graphics, viewed through
CrystalEyes Eyewear.

However, I cannot get my left monitor display (channel 0) switched to
high resolution with ircombine using the following vfo files:

1280x1024_120s.vfo
1024x768_120s.vfo

All I got is a blank screen on my left monitor.
Lower resolution with the following vfo files does work:

640x512_120s.vfo
640x480_120s.vfo

Lower refresh rate, higher resolution also works:

1024x768_96s.vfo

So my question is: Can I have the full 1280x1024 resolution while using
Per Window (Quad Buffer) stereo?

This Onyx has only ONE RM. Could that be a factor?
Additional h/w info follows:

 /usr/gfx 44%gfxinfo
Graphics board 0 is "KONAS" graphics.
        Managed (":0.0") 2560x1024
        Display has 8 channels
        4 GEs (of 4), occmask = 0x0f
        4MB external BEF ram, 32bit path
        1 RM6 board (of 1) 1/0/0/0
        Texture Memory: 64MB/-/-/-
        Small pixel depth
        32K cmap, 64K external gamma
        Channel 0:
         Origin = (0,0)
         Video Output: 1280 pixels, 1024 lines, 60.00Hz
(1280x1024_60.vfo)
        Channel 1:
         Origin = (0,538)
         Video Output: 640 pixels, 486 lines, 29.97Hz (640x486_30i.vfo)
        Channel 2:
         Origin = (1280,0)
         Video Output: 1280 pixels, 1024 lines, 60.00Hz
(1280x1024_60.vfo)
        Channel 3:
         Origin = (0,544)
         Video Output: 640 pixels, 480 lines, 60.00Hz (640x480_180q.vfo)

Thanks in advance for any suggestion or comment.

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Clement K. Tam			|Research Scientist    
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