Re: garbled display window in vis5d since x11-2.3.1
Re: garbled display window in vis5d since x11-2.3.1
- Subject: Re: garbled display window in vis5d since x11-2.3.1
- From: Jeremy Huddleston <email@hidden>
- Date: Mon, 22 Jun 2009 13:00:22 -0700
Ted Mansell wrote:
I use an older 3D data visualization software package called Vis5d+
(http://vis5d.sourceforge.net/) and something in X11 after version
2.2.3 causes wild behavior in the background of its output window.
When vis5d launches, the background of the output window, which should
be just black, is getting seemingly random bits of images from other
parts of the screen. It can even get parts of documents that were
displayed previous to the last reboot. And these random image bits
are scattered and flickering within the window. Vis5d can still draw
its objects in the window, but redrawing does not remove old images.
I had not upgraded from 2.2.3 (xorg-server 1.3.0-apple21) because it
was working fine, but the recent 10.5.7 update must have included some
X11 updates (XQuartz 2.1.6, xorg-server 1.4.2-apple33). This problem
appears on my MacPro (dual quad 3.2GHz), but seems not to have
affected my MacBook Pro. I downgraded my MacPro to 2.2.3, and it is
fine again. One more curiosity is that using screen sharing from the
macpro to a MacbookPro does _not_ show the problem. (i.e., the
flickering display window on the MacPro looked normal via
screensharing.) Furthermore, screenshots (fullscreen, window only,
and picture dump from vis5d) show only what is supposed to be drawn on
the window, so I took a picture with my iSight to show the problem.
Any ideas??? Could it be that X11 might be working correctly but
that Vis5d has old/unsafe code that no longer behaves correctly?
I think it's a graphics driver problem. Does your application have
support for stereoscopic ("3D goggles")?
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