<div dir="ltr">This is a bit of a long shot, but my first gut reaction was to see if there is something wrong with opengl.<div><br></div><div>In doing a quick search for Avogadro, the screenshots seem to support the idea that it might use opengl.</div><div><br></div><div>What video card do you have?</div><div>If you run <span style="color:rgb(46,26,5);font-family:monospace;font-size:13.13px">glxinfo | grep render does it show direct rendering?<br>What's the </span><span style="color:rgb(46,26,5)">OpenGL renderer string?</span></div><div><span style="color:rgb(46,26,5)"><br></span></div><div><span style="color:rgb(46,26,5)">I'm not sure how much more of a help I'll be, but hopefully that gets you started down the right path.</span></div><div><span style="color:rgb(46,26,5)"><br></span></div><div><span style="color:rgb(46,26,5)">--Bill</span></div><div><span style="color:rgb(46,26,5)"><br></span></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 11:43 AM, Stephen P. Molnar <span dir="ltr"><<a href="mailto:s.molnar@sbcglobal.net" target="_blank">s.molnar@sbcglobal.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal">I have a rather perplexing problem.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">My main Linux computer is a two year old (at least the most recent upgrade) 3.5GHz AMD 64 bit octa-core CPU. <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"> Due to a rather catastrophic failure I have just upgraded the OS from Debian v-7.2 to Debian v-8.4.0. I downloaded the DVD-1 and the checksum was correct. When I burned it to a DVD here were no problems. Nor, were there any problems with the installation.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">However, several of the applications that I use on rather a daily basis are acting rather strangely. A case in point is Avogadro, which happens to be a part of the distribution and therefore I didn’t have to compile the source code. It installed without any warnings or errors. When I run the application the graphic window is corrupted! This is also the case with another application, VMD, that I downloaded and installed. Both application worked without any problems in the previous Debian OS.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">There are other applications that I run, both in gui’s and terminals that continue to run flawlessly in the new OS.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Now, if that isn’t confusing enough, I tried something else. I installed the Linux VMWare Workstation 12 Player and installed the same Debian 8.4.0 in that. And . . . the display problem no longer exists!<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Obviously, I don’t want to have to run the native Linux Distribution in an VM, but I don’t have the faintest clue as to what is going on, nor any inkling how to fix the problem.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Although I have been a computer user since 1960’s I am an Organic Chemist and neither a hardware or software person.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I would really be most appreciative of any assistance.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Thanks in advance.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Stephen P. Molnar, Ph.D. Life is a fuzzy set<u></u><u></u></p><p class="MsoNormal"><a href="http://www.molecular-modeling.net" target="_blank">www.molecular-modeling.net</a> Stochastic and Multivariate<u></u><u></u></p><p class="MsoNormal"><a href="mailto:s.molnar@sbcglobal.net" target="_blank">s.molnar@sbcglobal.net</a><u></u><u></u></p><p class="MsoNormal"><a href="tel:%28614%29312-7528" value="+16143127528" target="_blank">(614)312-7528</a>(c)<u></u><u></u></p><p class="MsoNormal">Skype: smolnar1<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p></div></div><br>_______________________________________________<br>
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