[Chimera-users] chimera 1.11.2rc crashes

Tom Goddard goddard at sonic.net
Thu Oct 13 09:40:59 PDT 2016

Hi Yanni,

  There is nothing wrong with the Quadro K2000 graphics card — it is the Nvidia graphics driver software that has the problem.  So the simplest solution is to try newer and older Quadro K2000 graphics drivers to find one that works.  As I mentioned before the Nvidia Quadro cards are a niche market and so my experience has been that the graphics drivers are less reliable than than the video game oriented Nvidia GeForce cards which have a huge market.  There is no telling which specific graphics cards will be afflicted by graphics driver bugs.  When getting a new card I would choose a widely used and current generation card that is within your budget.  If you want to use stereoscopic shutter glasses that will limit the choice, probably requiring a niche card like the Quadro series.  You can get some idea of the performance of various graphics cards on benchmark sites, for example


There are Chimera specific benchmarks here

	http://plato.cgl.ucsf.edu/trac/chimera/wiki/benchmarks <http://plato.cgl.ucsf.edu/trac/chimera/wiki/benchmarks>

There are entries for Quadro K2000 so people have found working graphics drivers — the table even says what driver they were using.

  For a specific recommendation, if you want a current popular very high end card, an Nvidia Geforce GTX 1080 for about $600-$800.  But there are many good less expensive options.


> On Oct 13, 2016, at 7:37 AM, Yanni Goudeuk <goudeuk at gmail.com> wrote:
> Hello Tom
> You were right. 
> I removed the Quadro graphics card and installed a lower spec card (GT 710-1G RAM).
> Then started Chimera and did the same movements. Chimera did not crash but the card was struggling to cope. 
> Rotating a structure with added maps was quite slow. After a while even the chimera menu became slow.
> Could you please suggest to me a graphics card that chimera will be happy to "play" with?
> Many thanks
> On 12 October 2016 at 19:19, Tom Goddard <goddard at sonic.net <mailto:goddard at sonic.net>> wrote:
> These Chimera crashes are very likely caused by a graphics driver bug.  These are especially common on Nvidia Quadro cards because very few people use those cards so the drivers seem worse than for consumer cards.  You would only use such a card to support stereoscopic rendering with LCD shutter glasses, as you mention.
> At any rate, the only thing likely to fix these crashes is to install either a newer or older graphics driver that does not hit the bugs.
> If you use Chimera menu entry Help / Report a Bug… you can send us a report that includes your graphics driver version.  We can discuss the problem more through via our bug reporting system.
> 	Tom
>> On Oct 12, 2016, at 3:17 AM, Yanni Goudeuk <goudeuk at gmail.com <mailto:goudeuk at gmail.com>> wrote:
>> Hello Chimera developers
>> I've got the latest chimera (1.11.2rc), installed on windows 7 (64bit).
>> My card is Nvidia Quadro K2000 and is using the latest drivers: 369.49
>> - 3D OpenGL stereo is enabled under "manage 3D settings" in nvidia Control Panel
>> My problem is that chimera crashes a few minutes after I open a .pyc file.
>> Sometimes it will crash when I add a map in "model panel", sometimes when I rotate the structure, sometimes when I go though the tabs under "Favourites" --> "Side view". This is happening with other .pyc files too. I can also confirm that this is happening with older versions of chimera.
>> Please have a look at the Application error log from event viewer:
>> The program pythonw.exe version stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Action Center control panel. 
>>  Process ID: ab0 
>>  Start Time: 01d2246bcf21dbd4 
>>  Termination Time: 46 
>>  Application Path: C:\Program Files\Chimera 1.11.2rc\bin\pythonw.exe 
>>  Report Id: 3c965b43-905f-11e6-bd99-b8ca3a8bb0d4 
>> If you have any suggestions please let me know.
>> Many thanks
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