[Chimera-users] Problem with Chimera 1.7 on Linux OS

[Greg Couch]

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 at 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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