Those errors are coming from Chimera asking the graphics driver about multisampled visuals. You might be able to avoid the problem by starting up chimera with the --debug-opengl flag and turning off multisampling. But the fact that you are getting an error means that you need to update the graphics driver on your Linux production computer. For Linux computers, we recommend installing the proprietary NVIDIA or AMD graphics driver depending on which brand of graphics hardware you have. If you have Intel graphics, the only easy way to get updates is to update to a newer version of Linux. If you are running Chimera inside a virtual machine, then updating the graphics driver means updating the virtual machine software, but chimera would perform better without that intervening layer. Also note that on some newer versions of Linux, eg., Ubuntu 12.10, the default setup interferes with OpenGL applications, in particular, opening the SideView tool causes Chimera to crash. The workaround is to switch to a non-compositing window manager like xfce. HTH, Greg On Fri, 1 Feb 2013, Stephen P. Molnar wrote:

I have downloaded, and installed, the 64 bit linux version 1.7, in 64 bit Debian Testing running in Oracle VirtualBox v4.2.6r82870 before loading it onto my Linux production computer.  The installer ran smoothly without generating any warnings or errors.

 

However, when I run the executable I get the following messages:

 

computation@debian:~/Apps/chimera/bin$ ./chimera

OpenGL Warning: glXChooseVisual: bad attrib=0x186a0, ignoring

OpenGL Warning: glXChooseVisual: bad attrib=0x186a1, ignoring

OpenGL Warning: No pincher, please call crStateSetCurrentPointers() in your SPU

 

I have the win version open in MS Win 7 on the same computer as I compose this message.

 

Stephen P. Molnar, Ph.D.                                    Life is a fuzzy set

Foundation for Chemistry                                   Stochastic and multivariate

www.FoundationForChemistry.com

(614)312-7528 (c)

Skype:  smolnar1

 

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