From: John Stone (
Date: Thu Dec 16 2021 - 22:52:35 CST

  VMD itself doesn't set the current working directory during startup, so it
inherits whatever working directory the launching shell (whether graphical,
or text based) had set when the VMD process is created. I'm not sure why
the new ARM64 Macs (Apple "M1" etc) would behave differently in this
respect, but I can tell you that many other changes have been made to the
latest versions of MacOS, and it could simply be that the default process
working directory has now been set as part of the new OS behavior.

I'm currently traveling and away from the Mac Mini M1 test machine I've
been working with, but I'll try and dig into this question further
when I return home in early January.

If other M1 Mac users have any comments about their experiences with this
behavior and VMD, and/or with any other applications, I'd be curious to
hear if they see the same or similar issues.

  John Stone

On Tue, Dec 14, 2021 at 05:57:13PM -0500, Pacci Evaristo, Felipe Fabricio wrote:
> Hi everyone,
> This may be a basic question, but I was used to navigating to my directory
> or interest via terminal and running VMD via command line right there to
> already be in the directory I was interested in being in when VMD
> initiated. Since getting a new computer (and, therefore, switching to a
> different version of VMD), I haven't been able to do that anymore,
> although I've been following the very same steps I'd been following all
> along before. No matter from which directory I run VMD via command line,
> I'm placed at my home directory by default right away once VMD initiates.
> What do I need to do to activate that function?
> I am now running the "MacOS 11.x, ARM64 (64-bit "M1" Macs) (Apple MacOS-X
> 11 or later)" VMD version on macOS version 11.6.
> Thank you very much,
> Felipe Fabricio Pacci Evaristo
> Mobile: +1(773)569-2978
> Email: [1]
> Skype: felipepacci
> Pronouns: he/him/his
> References
> Visible links
> 1.

NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801           Phone: 217-244-3349