[Chimera-users] graphics problems after update from UCSF-Chimera64-1.5.3 to UCSF-Chimera64-1.6.2

Dieter Blaas dieter.blaas at meduniwien.ac.at
Tue Aug 21 00:09:36 PDT 2012

P.S. the dayly build has the same problem!

Dieter Blaas,
Max F. Perutz Laboratories
Medical University of Vienna,
Inst. Med. Biochem., Vienna Biocenter (VBC),
Dr. Bohr Gasse 9/3,
A-1030 Vienna, Austria,
Tel: 0043 1 4277 61630,
Fax: 0043 1 4277 9616,
e-mail: dieter.blaas at meduniwien.ac.at

Am 21.08.2012 08:28, schrieb Dieter Blaas:
> Hi Tom,
>   thanks for your quick reply!
> Yes, I kept the previous installation in a different directory and it 
> still works. So there must indeed be a difference between the two 
> versions that causes the problem.
> And, yes, chimera 1.6.2 crashes when fired up and does not get to the 
> point where I could use the Help function. It shows the splash screen 
> and dies when displaying "initializing graphics".
> I thus used the OpenGL debug function in version 1.5.3 to output the 
> info on drivers etc. (see attached image)
> Dieter
> Am 21.08.2012 00:26, schrieb Tom Goddard:
>> This is a graphics driver problem.  If you are running Chimera on one 
>> machine and displaying on another then the graphics driver (or Mesa) 
>> on either machine could cause the problem, or they just aren't able 
>> to talk to each other. First thing I would try is install 1.5.3 (if 
>> you removed it) and see that it still works. You can have Chimera 
>> 1.6.2 and 1.5.3 installed at the same time. Just put them in 
>> different directories.  I don't know of any difference between 
>> Chimera 1.6.2 and 1.5.3 that would explain why one would work and not 
>> the other.  You could also try the Chimera daily build.
>> Does Chimera crash when you load data or just when you start up? If 
>> it starts you should use Help / Report a Bug  so we know your graphic 
>> driver and other system info.
>>     Tom
>>> Hi,
>>>    I replaced the previous version of  Chimera, 
>>> UCSF-Chimera64-1.5.3  with the new one UCSF-Chimera64-1.6.2 on our 
>>> cluster running Linux l22 2.6.32-131.17.1.el6.x86_64 #1 SMP Wed Oct 
>>> 5 17:19:54 CDT 2011 x86_64 x86_64 x86_64 GNU/Linux
>>> whereas everything was perfect so far I now get the error message:
>>> X Error of failed request:  GLXBadContextTag
>>>   Major opcode of failed request:  153 (GLX)
>>>   Minor opcode of failed request:  5 (X_GLXMakeCurrent)
>>>   Serial number of failed request:  1352
>>>   Current serial number in output stream:  1352
>>> followed by a crash. This is annoying since I need the new version 
>>> for compatibility with some sessions saved with the new version on 
>>> another machine.
>>> Thanks a lot for hints, Dieter

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