[xcrysden] The rapid screen flickering issue on Mac OS X

[Tone Kokalj]

Concerning the rapid screen flickering issue on Mac OS X, I forward the
email of the Hanspeter Niederstrasser, who have managed the xcrysden @
fink.
 
-------- Forwarded Message --------
> From: Hanspeter Niederstrasser <hanspeter at snaggledworks.com>
> To: tone.kokalj at ijs.si
> Cc: "Dan Michael O. Heggø" <d.m.o.heggo at ub.uio.no>
> Subject: Re: [Fwd: [xcrysden] The rapid screen flickering issue on Mac
> OS X]
> Date: Fri, 20 Jan 2012 12:39:06 -0500
> 
> That user is using MacPorts (a different OS X package manager from Fink) 
> and it's probable that their libraries are built with different 
> settings.  A quick glance shows that MacPorts uses mesa-7.11.2 and Fink 
> has the older 7.0.2, so it might be due to version issues.  Fink is 
> still on an older version for historical reasons.
> 
> I definitely don't see any flickering in xcrysden here with the Fink 
> install on 10.7.  The only quick issue I noticed when loading one of the 
> sample files was that turning on aliasing made the dragging and rotating 
> very slow, but I think that's primarily a lack of hardware acceleration. 
>   No flickering though.
> 
> I would advise the user (CC'd) to ask the MacPorts mesa maintainer as he 
> might know more about a cause or workaround.  If he wants to invest the 
> time, he could also try installing xcrysden through Fink to see if the 
> flicker disappears so a hardware issue can be eliminated as a 
> possibility .  But building all of xcrysden's dependencies from scratch 
> (esp gcc46) for just a test is quite an undertaking.
> 
> Hanspeter

-- 
Anton Kokalj
J. Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia 
(tel: +386-1-477-3523 // fax:+386-1-477-3822)

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