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<p>As noted in the message:</p>
<blockquote>
<p>ERROR: ChimeraX requires OpenGL graphics version 3.3.<br>
Your computer graphics driver provided version 1.4<br>
Try updating your graphics driver.<br>
</p>
</blockquote>
<p>I trust you are running ChimeraX directly on the computer with
the graphics card. So no virtual machine and not running
remotely, right? ChimeraX runs best if it can talk to the
graphics card directly.<br>
</p>
<p><br>
</p>
<p>Updating your graphics driver depends on which operating system
(CentOS 7 in this case) and which graphics card you have. I'd
recommend Ubuntu over CentOS for a desktop Linux solution. Ubuntu
bundles in the recent AMD and Intel graphics drivers and makes it
easy to install the proprietary Nvidia graphics driver. For
CentOS 7, the graphics drivers are from 2018, but they should
work. If you have a Nvidia graphics card, make sure you install
Nvidia's proprietary graphics driver to get decent performance.
And to keep your Nvidia graphics updated automatically, use the
elrepo.org repository -- see
<a class="moz-txt-link-freetext" href="https://forums.centos.org/viewtopic.php?t=61162">https://forums.centos.org/viewtopic.php?t=61162</a>. Otherwise, you
will need to reinstall the Nvidia graphics driver every time the
kernel is updated (since you keep your computer up-to-date).<br>
</p>
<p><br>
</p>
<p>If you are trying to run ChimeraX inside a virtual machine, it
might be possible to make it work if your virtual machine can be
configured to use the underlying computer's graphics card (and the
underlying graphics card is good enough). You'll need to
investigate how to configure the virtual machine.<br>
</p>
<p><br>
</p>
<p>Getting ChimeraX to run remotely is difficult. Remote OpenGL can
work, but rarely does unless the stars are perfectly aligned
(e.g., the same graphics driver on both the remote server and the
local computer). VirtualGL inside a remote desktop solution does
work, but can be difficult to setup.<br>
</p>
<p><br>
</p>
<p> Best of luck,</p>
<p><br>
</p>
<p> Greg<br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 6/1/20 10:57 AM, Gaya Yadav wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1591034258800.52844@hwi.buffalo.edu">
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<div>
<p>Dear Sir/Madam,<br>
</p>
<p>I am trying to install Chimera X in the Centos 7 in my
local directory. I installed it by converting
it chimerax-rc.cpio. But I cannot launch it, it was showing
error about the openGL. Is that because of the openGL or it
is not installed properly?<br>
</p>
<p>Here is the error:<br>
</p>
<div>WARNING: QXcbConnection: XCB error: 145 (Unknown),
sequence: 178, resource id: 0, major code: 139 (Unknown),
minor code: 20</div>
<div>NOTE: available bundle cache has not been initialized yet</div>
<div>ERROR: ChimeraX requires OpenGL graphics version 3.3.</div>
<div>Your computer graphics driver provided version 1.4</div>
<div>Try updating your graphics driver.<br>
</div>
<div>WARNING: The X11 connection broke: No error (code 0)</div>
<div>XIO: fatal IO error 0 (Success) on X server
"localhost:12.0"</div>
<div> after 668 requests (668 known processed) with 0
events remaining.</div>
<div><br>
<br>
</div>
<div><br>
</div>
<p><br>
</p>
<p>Thanks<br>
</p>
<p>Gaya<br>
</p>
<p><br>
</p>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
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