periodic system freezes when using octaviz with Compiz enabled

[Bryan]

Binary package hint: octaviz

I am running Octave 3.0 with Octaviz. I often use vtk_mesh and vtk_surf to render 3D graphics. Occasionally, when such a call causes a new window to open my entire system freezes... everything. I can't restart X with a ctrl-alt-backspace or switch to a terminal with ctrl-alt-F2, and the courser is unresponsive. This only happens when Compiz is running. I have an NVIDIA 8400M GS and am running with proprietary drivers. I suspect that this is significant, since not everything has the power to crash the entire machine and this is known to have other stability problems (Although I personally don't experience any other problems with stability). I would be happy to provide any debugging info that is requested. For now I will leave my system info. I am running an HP Pavilion dv2000 laptop with an up-to-date install of Ubuntu Intrepid. I have an Intel Core 2 Duo T5750 at 2 GHz with 3 GB of RAM and Intel 4965 AGN Wireless (which has had a Kernel Panic issue- now resolved). Marvell Ethernet, and all other components are Intel. Any ideas would be appreciated. =)

[Bryan (poli0048)]

Hmm- This bug is not keeping me up at night since I can switch to Metacity before running Octave and prevent this problem, but in posting this I was hoping that somebody who knows more about Compiz/Octaviz/Octave/Nvidia Driver could direct this report to the appropriate people. If you know a bit about this stuff, please feel free to let those involved know about this problem. Thanks.

[Christopher (soft-kristal)]

I have a similar problem when the compiz 'reflection' effect is enabled. I started having freezes upon using Karmic and turned of all compiz effects at that time. I have since been enabling some effects and this one seems to be the culprit.

It's not particularly important to me, but it is a bug.