From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Dec 22 2014 - 20:03:35 CST

Hi,
  What video chipset or GPU type is in your Mac? Is it an Intel GPU, or
one by ATI/AMD or NVIDIA, or a hybrid that combines Intel with one of the
other two? I believe you're getting bitten by a windowing system driver
bug in MacOS itself. I've had a couple of others report this problem but
it only seems to affect people that are 1) running Yosemite and 2) have
an Intel GPU or a hybrid GPU machine, e.g. such as a laptop that combines
an Intel GPU with an NVIDIA, or something similar. If you can tell me more
about the hardware in your machine that would be helpful. Obviously nothing
has changed with VMD in the last two days, so I assume that a MacOS
system software update has broken things on your machine.

Cheers,
  John

On Sun, Dec 21, 2014 at 10:28:47PM +0100, Alessandro Mariani wrote:
> Not so recently. In any case VMD had no problems until two days ago,
> earlier I used it normally, even on Yosemite
>
> Il domenica 21 dicembre 2014, John Stone <[1]johns_at_ks.uiuc.edu> ha
> scritto:
>
> Hi,
> A I'm guessing from that error that you recently upgraded to
> MacOS X Yosemite, is that correct?
>
> Cheers,
> A John Stone
> A [2]vmd_at_ks.uiuc.edu
>
> On Sun, Dec 21, 2014 at 08:19:41PM +0100, Alessandro Mariani wrote:
> >A A Hello, I'm currently using VMD 1.9.1 for mac and I never had any
> problem,
> >A A until two days ago when, with apparently non reasons, when I try
> to load
> >A A anything the graphic window freezes and this message is shown:A
> >
> >A A 2014-12-21 20:13:22.692 vmd_MACOSXX86[5088:199173] Unable to
> >A A simultaneously satisfy constraints:
> >
> >A A (
> >
> >A A AA AA <NSAutoresizingMaskLayoutConstraint:0x11b3ec00 h=--&
> v=--&
> >A A V:[NSView:0x6d6570(0)]>,
> >
> >A A AA AA <NSAutoresizingMaskLayoutConstraint:0x11b3e800 h=-&-
> v=-&-
> >A A V:|-(0)-[FI_TListScrollView:0x6d7630] AA (Names:
> '|':NSView:0x6d6570 )>,
> >
> >A A AA AA <NSAutoresizingMaskLayoutConstraint:0x11b3e7c0 h=-&-
> v=-&-
> >A A V:[FI_TListScrollView:0x6d7630]-(0)-| AA (Names:
> '|':NSView:0x6d6570 )>,
> >
> >A A AA AA <NSAutoresizingMaskLayoutConstraint:0x11b3a9d0 h=-&-
> v=-&-
> >A A V:[NSClipView:0x6d7bf0]-(15)-| AA (Names:
> '|':FI_TListScrollView:0x6d7630
> >A A )>,
> >
> >A A AA AA <NSAutoresizingMaskLayoutConstraint:0x11b3a990 h=-&-
> v=-&-
> >A A V:|-(0)-[NSClipView:0x6d7bf0] AA (Names:
> '|':FI_TListScrollView:0x6d7630
> >A A )>
> >
> >A A )
> >
> >A A Will attempt to recover by breaking constraintA
> >
> >A A <NSAutoresizingMaskLayoutConstraint:0x11b3a9d0 h=-&- v=-&-
> >A A V:[NSClipView:0x6d7bf0]-(15)-| AA (Names:
> '|':FI_TListScrollView:0x6d7630
> >A A )>
> >
> >A A Set the NSUserDefault
> >A A NSConstraintBasedLayoutVisualizeMutuallyExclusiveConstraints to
> YES to
> >A A have -[NSWindow visualizeConstraints:] automatically called when
> this
> >A A happens.AA And/or, break on objc_exception_throw to catch this
> in the
> >A A debugger.
> >
> >A A What should I do?
> >
> >A A _____________________________________________
> >A A Dr. Alessandro Mariani
> >A A PhD StudentA
> >A A Department of ChemistryA
> >A A "La Sapienza" University of Rome
> >A A P.le Aldo Moro, 5
> >A A 00185 Rome (IT)
> >A A Telephone: +39 06 49934082
> >A A Mobile Phone: +39 340 4124911
> >A A _____________________________________________
>
> --
> NIH Center for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> [3]http://www.ks.uiuc.edu/~johns/A A A A A A Phone: 217-244-3349
> [4]http://www.ks.uiuc.edu/Research/vmd/
>
> --
> _____________________________________________
> Dr. Alessandro Mariani
> PhD StudentA
> Department of ChemistryA
> "La Sapienza" University of Rome
> P.le Aldo Moro, 5
> 00185 Rome (IT)
> Telephone: +39 06 49934082
> Mobile Phone: +39 340 4124911
> _____________________________________________
>
> References
>
> Visible links
> 1. mailto:johns_at_ks.uiuc.edu
> 2. javascript:;
> 3. http://www.ks.uiuc.edu/~johns/
> 4. http://www.ks.uiuc.edu/Research/vmd/

-- 
NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
http://www.ks.uiuc.edu/~johns/           Phone: 217-244-3349
http://www.ks.uiuc.edu/Research/vmd/