[Chimera-users] Recent problems with linux x64 version

Greg Couch gregc at cgl.ucsf.edu
Thu Jul 30 17:48:04 PDT 2015

(The link is wrong, it should be 

The radeon/nouveau and libstdc bug is fixed in the daily build.  It 
should have been backported for the 1.10.2 release, but it wasn't. Mea 

I am very surprised that you had problems with the NVIDIA driver. 
Historically, it has been less buggy than the open source driver and 
much faster, which is why I strongly recommend using the NVIDIA driver.  
The NVIDIA driver is at least twice as fast as the open source one, and 
usually even faster.  The results are similar for older graphics cards. 
   The NVIDIA driver also supports OpenGL version 4.5, while nouveau is 
back somewhere before 4.2 (3.3?).



On 07/30/2015 12:52 PM, Peter L. wrote:
> Hello,
> Recently I used Chimera for a internship/volunteer work with my older 
> brother, and it did not start up due to some seemingly graphics 
> drivers problems. I'm running Ubuntu 15.04 on a AMD radion 5450M on 
> this machine and NVidea gtx 760 on another.  Both would not start up 
> due to having
> libGL error: unable to load driver: nouveau_dri.so etc etc,
> as so documented here:
> http://plato.cgl.ucsf.edu/pipermail/chimera-users/2015February/010734.html
> (Error from the NvIdia machine) and would not load r600. However both 
> had the same fix, that seemigly works by removing the file 
> /Chimera64-1.10.2/lib/libstdc++.so.6, I renamed it to 
> libstdc++.so.6.bak in case I might need it, but it works on both 
> machines now. It seems as some older libs are colliding with mesa 
> drivers, and casung them to break, and removing this fixes the 
> problem. Its been documented before with other programs here, where 
> the fix is simular. 
> http://askubuntu.com/questions/614422/problem-with-installing-steam-on-ubuntu-15-04
> I also found that in the chimera mail I found, it was recommend to 
> update some drivers, or Nvidia drivers, however, nvidia drivers for 
> linux tend to break the system a lot or cause other problems.
> Hope this helps!,
> Peter
> _______________________________________________
> Chimera-users mailing list
> Chimera-users at cgl.ucsf.edu
> http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users

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