[rescue] Weird Silicon Graphics o2 graphics issues

Patrick Giagnocavo +1.717.201.3366 patrick at zill.net
Tue Sep 30 21:49:27 CDT 2003

On Tue, Sep 30, 2003 at 10:34:20PM -0400, Kurt Huhn wrote:
> On Wed, 01 Oct 2003 11:31:22 +1000
> Benjamin Gardiner wrote:
> > what seems to happen is the "whole" image isn't displayed but the
> > first section of the image, then it repeats, with the dog image its
> > pretty much half, but it can be a third.  With image view, to get it
> > to display this behavior I have to resize the image.
> > 
> > the best explanation would be this screen capture here:
> > <http://www.carnagevisors.net/images/image1.jpeg>
> > 
> That doesn't look good.  It points to an addressing problem in memory or
> perhaps a problem with the graphics chipset.  From what you describe,
> this only happens when you're doing texture - and that's not a happy
> thing when dealing with O2s.

It doesn't look good, but before saying that it definitely is a
hardware problem, I would ask for the full output from:

Running the command 'xdpyinfo'

The full contents of the Xserver file (which has all the command line
options that the X server is started with) 

Also a few tests should be in order:

What happens:

if you turn off backing store?
if you change resolution?
if you change color depth?
if you disable the 8bit PseudoColor overlay plane?

Remember that even the dmedia stuff from SGI has bugs in it... perhaps
this is some kind of weirdness that is being tickled that won't be
under slightly different X server configuration.


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