Hi Chris and Robert, Since yesterday I am also experiencing such freezes, but currently I really can't tell if it's my fault or something else (I am working on the SVN version, WinXP and NVidia 8500GT).
As soon as I find some time I'll try to investigate on this. On 8/29/07, Chris Davoren <[EMAIL PROTECTED]> wrote: > > Robert, > > The two cards are in two separate machines, on which I am getting a > similar error. However, the worse by far is the machine with the 8800 > GTX, so that is the one on which I have focussed my testing efforts. > > It seems that the driver does not freeze permanently; sometimes I can > regain control by holding down escape (in osgviewer) which eventually > quits the program returns apparently normal control. This definitely > leaves the OpenGL driver in a corrupted state though, because from the > first time osg breaks, all other OpenGL programs show similar geometry > glitches and freezes. This persists until reset. > > I want to stress however that this never happens if I do not run an > osg-based application. > > I agree that it definitely *looks* like a driver issue, but the facts > that I am using unexceptional hardware, the latest nvidia driver > (162.18) that I presume most windows developers here are also using, > and that no other OpenGL or Direct3D applications show any problems > makes me scratch my head a bit. Is there anyone else here/do you know > of anyone using osg under WinXP with an 8-series nvidia card? > > I should add that the system dual boots with Ubuntu, under which I get > no such error. This steers me away from the conclusion that this is a > hardware fault. All in all I'm pretty stumped. > > Chris. > > On 7/31/07, Robert Osfield <[EMAIL PROTECTED]> wrote: > > Hi Chris, > > > > This really sounds like a OpenGL driver issue. W.r.t other OpenGL > > apps, are they opening up on both cards at one time like the OSG > > examples will try to do later, it could be the driver is struggling > > with handle two graphics cards at once. > > > > Things you could try is forcing the apps to open up on a particular > > screen by setting the OSG_SCREEN env var to 0 or 1. > > > > Robert. > > > > > > > > On 7/31/07, Chris Davoren <[EMAIL PROTECTED]> wrote: > > > Thanks for replying Robert. > > > > > > I am using the latest version of OSG: 2.0, released on the 15th of > June. > > > > > > The two cards in question are a 6600GT and an 8800GTX, both of which > are > > > using the latest stable (not beta) drivers from Nvidia. My first > thought > > > was a driver issue too, except that I can't get any other OpenGL > programs to > > > fail. Is there a way I can identify this kind of issue? > > > > > > As far as I can tell, pretty much all of the examples can or will fail > at > > > some point. Specifically, the osgsimulator example runs very poorly > on the > > > 6600GT (low framerate, globe reflection flickers and is backed by a > black > > > rectangle) and bringing text up on the screen, such as by pressing H > in > > > osgsimulator, seems to encourage the error to happen more often. > > > > > > Thoughts? > > > > > > Chris Davoren. > > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- Serge Lages http://www.magrathea-engine.org
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