[osg-users] Framerate vs stats?

[Wojciech Lewandowski]

Hi,

Problem exists on my collegues 32 bit Vista & GeForce 8800 as well (I am not 
sure wheter its GTX,GT or GTS nor drivers version). My config is XP + 7800 
GTX  (ver 163.75) Whats interesting when this happens GPU timing is also not 
displayed. See attached screenshots.

Btw I just learned that problem appears only when following 3D Setting  in 
NVidia Control Panel is set:
    Multi-display/mixed GPU acceleration:
        Compatibility or Multiple display performance mode

Problem dissapears (even with 2 monitors) when this setting is set to Single 
Display performnce mode. But in this case osgviewer does not start in dual 
screen mode but only on first monitor.

I agree that these are  most probaly drivers. I am curious what driver 
version you have ? Especially if  you are sure you tested this with 
Multi-display/mixed GPU acceleration set to Multiple display mode ? ;-) I 
encountered a bunch of other problems in two monitor configurations  maybe I 
will switch to the same version of the drivers as yours.

Cheers,
Wojtek




----- Original Message ----- 
From: "Jean-Sébastien Guay" <jean-sebastien.guay at cm-labs.com>
To: "OpenSceneGraph Users" <osg-users at lists.openscenegraph.org>
Sent: Friday, February 15, 2008 5:43 PM
Subject: Re: [osg-users] Framerate vs stats?


> Hello Judd,
>
>> I can confirm that when we run on two monitors and the stats are up that
>> the framerate slowly degrades in OSG 2.2 binaries from the website.  It
>> went from 60fps to 8fps in about 2 minutes.  We are running WinXP with a
>> GeForce 8600 GTS.
>
> What would be interesting would be to try other driver versions. I have
> personally not seen this on my 8800GTX (running Vista, driver 169.25) so
> possibly the Vista drivers don't have this bug. What's your driver 
> version?
>
> It would be interesting to see what specifically in the stats display is
> triggering this, but I think it's not OSG's policy to work around driver
> bugs, just wait for them to be fixed. In the mean time you'll probably
> want to roll back to a version that doesn't have this problem.
>
> J-S
> -- 
> ______________________________________________________
> Jean-Sebastien Guay    jean-sebastien.guay at cm-labs.com
>                                http://www.cm-labs.com/
>                         http://whitestar02.webhop.org/
> _______________________________________________
> osg-users mailing list
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> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> 
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