[Chimera-users] Chimera running on a remote computer over ssh >>>> use virtualgl to avoid graphics problems

[Eric Pettersen]

Interesting.  Note that in the 1.7 builds libotf is no longer preloaded, so step #2 will not be needed for those.

--Eric

                        Eric Pettersen
                        UCSF Computer Graphics Lab
                        http://www.cgl.ucsf.edu

On Sep 18, 2012, at 8:47 AM, Dieter Blaas wrote:

> Those who encountered lots of problems with the graphics when running chimera remotely
> 
> for example you receive error messages like this one:
> 
> X Error of failed request:  GLXBadContextTag
>             Major opcode of failed request:  153 (GLX)
>             Minor opcode of failed request:  5 (X_GLXMakeCurrent)
>             Serial number of failed request:  1352
>             Current serial number in output stream:  1352
> 
> might be interested in the following solution:
> 
> 1) install VirtualGL (http://www.virtualgl.org/) on both PCs
> 2) outcomment the indicated lines in the 'chimera' startup script
> 3) connect to the server by using 'vglconnect'
> 4) start chimera on the server with 'vglrun chimera'
> 
> that's it!
> 
> if [ -z "$nogui" ]
> then
>    case "`uname -s`" in
>        Linux)
>            # preload our C++ runtime to avoid
>            # ATI graphics driver bug
>            # LD_PRELOAD=libotf.so <<<<<<<<<
>            # export LD_PRELOAD <<<<<<<<<
>            if test -e "$CHIMERA/bin/python2.7"
>            then
>                python="$CHIMERA/bin/python2.7"
>            else
> 
> in those cases where chimera works without this trick you might still see a substancial improvement in transmission speed!
> 
> Best, Dieter
> 
> -- 
> ------------------------------------------------------------------------
> Dieter Blaas,
> Max F. Perutz Laboratories
> Medical University of Vienna,
> Inst. Med. Biochem., Vienna Biocenter (VBC),
> Dr. Bohr Gasse 9/3,
> A-1030 Vienna, Austria,
> Tel: 0043 1 4277 61630,
> Fax: 0043 1 4277 9616,
> e-mail: dieter.blaas at meduniwien.ac.at
> ------------------------------------------------------------------------
> 
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