<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Yes, you are correct. Sorry about that.<br><br>Sent from my iPhone</div><div><br>On Apr 25, 2016, at 7:53 PM, Andras Lasso <<a href="mailto:lasso@queensu.ca">lasso@queensu.ca</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Donny, that thread was about the same issue, reported by Richard a couple of weeks ago. I don’t think there was a fix.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Richard, you may try to turn off “Threaded optimization” in NVidia settings. It sometimes fixes crashes in the driver.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Andras<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Donny Zimmerman [<a href="mailto:zmanvortex@gmail.com">mailto:zmanvortex@gmail.com</a>]
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<b>Sent:</b> April 25, 2016 7:19 PM<br>
<b>To:</b> Richard Frank <<a href="mailto:rickfrank@me.com">rickfrank@me.com</a>><br>
<b>Cc:</b> Andras Lasso <<a href="mailto:lasso@queensu.ca">lasso@queensu.ca</a>>; <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
<b>Subject:</b> Re: [vtkusers] Assemblies "coming apart " during long test runs....<o:p></o:p></span></p>
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<p class="MsoNormal">I think it might be related to the following thread:<o:p></o:p></p>
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<p class="MsoNormal"><a href="http://vtk.1045678.n5.nabble.com/Moving-an-actor-after-about-1-5-hours-td5737049.html">http://vtk.1045678.n5.nabble.com/Moving-an-actor-after-about-1-5-hours-td5737049.html</a><o:p></o:p></p>
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<p class="MsoNormal">If I remember correctly there is a fix suggested at the end of the thread.<br>
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Sent from my iPhone<o:p></o:p></p>
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On Apr 24, 2016, at 1:16 PM, Richard Frank <<a href="mailto:rickfrank@me.com">rickfrank@me.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">So far it happens on all three of our machines ( Clevo "laptop" with quadro k5000m , I power computer with geoforce 9xx and another workstation with quadro m5000) , but it does seem low level as per flash/ recovery as you say...<br>
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Anyone from Nvidia on this list who might be able to assist? :-)<br>
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Thanks <br>
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Rick<br>
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Sent from my iPad<br>
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<p class="MsoNormal">On Apr 24, 2016, at 2:06 PM, Andras Lasso <<a href="mailto:lasso@queensu.ca">lasso@queensu.ca</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">One computer where it happens quite frequently has NVidia GeForce GTX 660, uses Windows 8.1. The symptoms indicate video card/driver (maybe lower level - motherboard, BIOS, etc) issues, which are time-consuming to diagnose, so we just decided
to not use this computer for any serious work.<o:p></o:p></p>
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<p class="MsoNormal">Andras<o:p></o:p></p>
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<p class="MsoNormal">-----Original Message-----<o:p></o:p></p>
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<p class="MsoNormal">From: Richard Frank [<a href="mailto:rickfrank@me.com">mailto:rickfrank@me.com</a>]
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<p class="MsoNormal">Sent: April 24, 2016 1:51 PM<o:p></o:p></p>
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<p class="MsoNormal">To: Andras Lasso <<a href="mailto:lasso@queensu.ca">lasso@queensu.ca</a>><o:p></o:p></p>
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<p class="MsoNormal">Cc: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><o:p></o:p></p>
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<p class="MsoNormal">Subject: Re: [vtkusers] Assemblies "coming apart " during long test runs....<o:p></o:p></p>
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<p class="MsoNormal">Hmm. We're using top of the line quadro m 5000 cards ( and some geoforce 9xx cards ). Have you done any other tests ( OpenGL logging etc ) to get further information?
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<p class="MsoNormal">Are you on Windows?<o:p></o:p></p>
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<p class="MsoNormal">Thanks <o:p></o:p></p>
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<p class="MsoNormal">Sent from my iPad<o:p></o:p></p>
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<p class="MsoNormal">On Apr 24, 2016, at 1:45 PM, Andras Lasso <<a href="mailto:lasso@queensu.ca">lasso@queensu.ca</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Yes, we've experienced this, too. Screen flashes and then actors don't move anymore on screen and colors cannot be changed (we change actor properties in VTK but nothing changes on screen). Actors that we add after the flash behave normally.
We run the same software on many computers in our lab but the problem only occurs on a few computers and never on others (even when running continuously for several days).<o:p></o:p></p>
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<p class="MsoNormal">We suspect it's a video card hardware/driver issue. The "flash" is probably a crash&recovery of the video card driver.<o:p></o:p></p>
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<p class="MsoNormal">From: vtkusers [<a href="mailto:vtkusers-bounces@vtk.org">mailto:vtkusers-bounces@vtk.org</a>] On Behalf Of Richard Frank<o:p></o:p></p>
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<p class="MsoNormal">Sent: April 24, 2016 1:25 PM<o:p></o:p></p>
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<p class="MsoNormal">To: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><o:p></o:p></p>
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<p class="MsoNormal">Subject: [vtkusers] Assemblies "coming apart " during long test runs....<o:p></o:p></p>
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<p class="MsoNormal">We are seeing a strange behavior. We have a model of an human internal organ, made up of a series of triangle meshes. The are between four and seven sets of meshes combined into an an assembly. During a long ( multiple hours ) automated
test, where a surgical instrument is moved through the scene repeatedly ( Made from implicit function sources and also combined into an assembly) , there is an issue - and the best way for me to describe it is that the assemblies " come apart. Each actor
in the assembly is moved to a deferent place in the scene, as if perhaps they " exploded ". We have videoed this and there seems to be a screen flash before the happens.
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<p class="MsoNormal">Things keep going, there's no crashes, etc. <o:p></o:p></p>
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<p class="MsoNormal">Has anyone else experienced this? Does anyone have an insight as to how to track down the problem?<o:p></o:p></p>
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<p class="MsoNormal">Sent from my iPad<o:p></o:p></p>
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