[Chimera-users] Fwd: Re: run chimera remotely over nice dcv

Greg Couch gregc at cgl.ucsf.edu
Mon Apr 23 09:48:15 PDT 2018

Solution found!

-------- Forwarded Message --------
Subject: 	Re: [Chimera-users] run chimera remotely over nice dcv
Date: 	Sat, 21 Apr 2018 13:20:11 +0200
From: 	Mihajlo Vanevic <m.vanevic at uu.nl>
To: 	Greg Couch <gregc at cgl.ucsf.edu>

Dear Greg,

Thank you very much for the prompt reply.

About ssh -X, indeed putting the compatible libGL.so from local machine
to Chimera's lib folder does the trick.

About Nice DCV, I have contacted Nice DCV developers and will
let you know if the problem is solved.

With best wishes,

On 04/20/2018 07:54 PM, Greg Couch wrote:
> Hi Mihajlo,
> We don't have any experience with Nice DCV, perhaps some other user on 
> the mailing list can help.  But guessing at possible problems, make 
> sure that Chimera is displaying locally in Nice DCV virtual machine 
> (the DISPLAY environment variable should be ":0"), and the remote 
> display is done using the Nice DCV client.
> If, instead, you're using X11's remote display capability, then you 
> wouldn't need to use Nice DCV, any virtual machine technology would do 
> (or not do) -- the trick there is to have compatible OpenGL drivers on 
> both the virtual machine and your local computer (running the X11 
> server).  Assuming compatible versions of Linux on both ends, you 
> could copy libGL.so from your local machine to the Chimera's lib 
> directory on the remote machine, and it should work.
>     Good luck,
>     Greg
> On 4/20/2018 5:07 AM, Mihajlo Vanevic wrote:
>> Dear Chimera users and developers,
>> We are trying to run Chimera remotely on our cluster via Nice DCV
>> visualization software:
>> https://www.nice-software.com/products/dcv
>> This package provides GPU acceleration for OpenGL and
>> DirectX applications. It indeed works for most of apps, however with 
>> Chimera
>> we get the following startup error
>> X Error of failed request: GLXBadContext
>>   Major opcode of failed request:  152 (GLX)
>>   Minor opcode of failed request:  5 (X_GLXMakeCurrent)
>>   Serial number of failed request:  73
>>   Current serial number in output stream:  73
>> Our cluster visualization node has nvidia GeForce GTX 1080 Ti cards
>> and nvidia drivers 384.81
>> Chimera works if we use software mesa rendering, but it would be great if
>> we can make it work remotely with hardware rendering.
>> With kind regards,
>> Mihajlo Vanevic
>> Cryo-EM group, Utrecht University

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