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For what it is worth (I'm fairly confident that indeed this is not the cause of the problem you are seeing, but better checking than missing the point):
The current MacBook Pro also have two GPU, one integrated in the chipset and a more powerful dedicated one.
By default only the chipset integrated one is on (to save on power consumption), so if you're doing graphics it is worth going in "system preference" -> "energy saver" and at the top preference window check that "Graphics" is set to "Higher performance"...
A bummer is that it is currently necessary to restart one's session to go from one setting to the other, and I'm not 100% sure that this setting is preserved upon reboot of the machine...
Cheers,
Serge.
Le 15 févr. 2010 à 10:44, Andreas Förster a écrit :
> Hey Rui,
>
> for what it's worth, I had a very similar problem. I upgraded a MacBook
> Pro to OSX SP6 and got extra-slow graphics and a wildly flickering PyMOL
> window - only on the laptop screen, though. On the external screen,
> PyMOL looked ok. Ray-tracing was painfully slow in either window.
>
> When I cloned the screen instead of extending it, the flicker
> disappeared and didn't return when I went back to the original setup of
> two contiguous screens. All is good now.
>
> While this is by no means an answer to your question or useful advice,
> it means at the very least that you might be able to overcome your
> problems by fiddling around.
>
> Good luck.
>
> Andreas
>
> On 13/02/2010 5:10, rui wrote:
>> HI,Dear All,
>>
>> sorry for this non-crystallgraphic question, but I think people here may
>> know how to fix this problem. Several days ago, I posted a question
>> about slow coot in my mac and people suggested me change some settings
>> in coot which does help. However, I still feel something is wrong. I
>> noticed the slow speed when I installed x11,( I switched from ppc to
>> macpro and need to reinstall x11 and coot etc ). Since then, I noticed
>> that when I open a terminal , it's very slow and if I type glxgears, it
>> only shows about 1400 FPS. If I open pymol, I can actually see the
>> images are flashing. Does anyone know why? Thanks a bunch.
>>
>> Rui
>
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