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<p>Hello Rajiv,</p>
<p>While running OpenGL remotely should work, as you see it often
doesn't. It occasionally does work, usually when the remote
version of OpenGL and the local version of OpenGL are exactly the
same.<br>
</p>
<p>The best solution I've seen for running Chimera or ChimeraX on a
remote Linux server is to use VirtualGL. That side steps all of
the issues of trying to do OpenGL remotely by doing all of the 3D
graphics on the Linux server and returning an image. It helps if
there is a graphics card in the Linux server. VirtualGL has to be
installed on the Linux server for that to work, and it is a little
tricky to install correctly, but it is the best solution. Contact
your cluster support for help with that. Otherwise, try making
your computer exactly the same configuration as the Linux server,
same version of Linux, same graphics driver (ie., if the server
has NVidia 419, you need to have NVidia 419).<br>
</p>
<p>Sorry, I have to comment on the anti-social behavior of using a
cluster login node for running Chimera. I trust that was just an
example or that you're not sharing the login node with other
users. If your cluster has interactive/development nodes, those
would be the right nodes to use and it might be the case that
VirtualGL is already installed on those. If VirtualGL is
installed, then run "vglrun chimera" instead of "chimera".<br>
</p>
<p> All the best,<br>
</p>
<p> Greg<br>
</p>
<div class="moz-cite-prefix">On 7/13/2021 6:46 AM, Rajiv Ranjan
Singh via Chimera-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOnWSxR82NO_mt_qEPRVFQ-6Qik0ZKXQwpYPOL37fq2u=MeugQ@mail.gmail.com">
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<div dir="ltr">I am trying to open/run chimer; installed on a
cluster login node without root privilege. Installed in
Home//.local/UCSF-Chimera64-1.15rc/
<div><br>
</div>
<div>Getting the following error.</div>
<div><b>login1:</b>~/.local/UCSF-Chimera64-1.15rc/bin $
./chimera<br>
libGL error: unable to load driver: swrast_dri.so<br>
libGL error: failed to load driver: swrast<br>
X Error of failed request: BadValue (integer parameter out of
range for operation)<br>
Major opcode of failed request: 152 (GLX)<br>
Minor opcode of failed request: 3 (X_GLXCreateContext)<br>
Value in failed request: 0x0<br>
Serial number of failed request: 716<br>
Current serial number in output stream: 717</div>
<div><br>
</div>
<div>Kindly advise me to rectify this issue.</div>
<div><br>
</div>
<div>Best,<br>
<div>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">
<div>Rajiv Ranjan Singh</div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
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