VMD-L Mailing List

From: Brian Dotson (Brian.Dotson_at_netl.doe.gov)
Date: Wed Mar 03 2004 - 07:22:01 CST

The problem is due to spawning the process, but I don't think it has
anything to do with the xterm. I saw the same problem when I used the
following one line script, which I think is equivalent to what gets
executed in the vmd script.

exec xterm -T "VMD" -geometry 80x11-0-0 -sb -sl 1000 -e
/usr/local/lib/vmd/vmd_LINUX &

I removed the "&" from the script and then I was able to start vmd in
chromium correctly and it was still using xterm. So, I thought if I
removed the & from the following line in the vmd script it would work,
but it still didn't work.

exec $VMD_WINTERM -T "vmd console" $VMD_WINGEOM $VMD_WINOPTS \
                "$VMDDIR/$execname" $* &

I then added the following line to my test script.
#! /bin/csh

This caused the same problem we were seeing before. To summarize the
following doesn't work:
#! /bin/csh
exec xterm -T "VMD" -geometry 80x11-0-0 -sb -sl 1000 -e
/usr/local/lib/vmd/vmd_LINUX

This does work:
exec xterm -T "VMD" -geometry 80x11-0-0 -sb -sl 1000 -e
/usr/local/lib/vmd/vmd_LINUX

I'm not sure how to fix the vmd script because you need: #! /bin/csh

I hope this helps.

Brian

>>> "Cesar Delgado" <beettlle_at_hotmail.com> 03/02/04 08:26PM >>>
I think the problem is the shell script spawning a terminal and, from
there
calling VMD. I think Chromium is trying to intercept calls from the
terminal from which the shell was called and disregards the terinal tha
was
created which is calling VMD. The easies solution I can think of is to
make
another option in the shell script, something like "-chromium". I made
a
diff file to the vmd script that seems to work on our Chromium setup.
I
don't know csh so it's a horrible hack. I'm sure you guys can think of
a
more elegant way to do it. Just my $0.02.

132,136d131
<
< if ( "$argv[$parmcount]" == "-chromium") then
< set VMDCHROMIUM=1
< endif
<
284c279
< # check for Mac bundled version, else assume X-Windows 

---
># check for Mac bundled version, else assume X-Windows
287,290c282
<   # check to see if VMD will run under Chromium
<   if ($?VMDCHROMIUM == "1") then
<     exec "$VMDDIR/$execname" $*
<   else if ($?DISPLAY) then
---
>   if ($?DISPLAY) then
-Cesar Delgado
---------------------------------------------
Research Computing Facility @ UNL
http://rcf.unl.edu 
cdelgad2_at_bigred.unl.edu, beettlle_at_hotmail.com 
>From: John Stone <johns_at_ks.uiuc.edu>
>To: Brian Dotson <Brian.Dotson_at_netl.doe.gov>
>CC: beettlle_at_hotmail.com, vmd-l_at_ks.uiuc.edu 
>Subject: Re: vmd-l: Using VMD with Chromium
>Date: Tue, 2 Mar 2004 09:56:59 -0600
>
>
>Guys,
>   Do you know why running VMD via the normal startup script doesn't
work
>with Chromium?  Is some Chromium environment variable lost when it is
run
>that way?  If you guys can tell me what's going on there, I can
probably
>change the startup script so that it works for Chromium too.
>
>Thanks,
>   John Stone
>   vmd_at_ks.uiuc.edu 
>
>On Tue, Mar 02, 2004 at 07:12:42AM -0500, Brian Dotson wrote:
> > Cesar,
> >
> > Running the binary worked.
> >
> > Thanks for the help.
> >
> > Brian
> >
> > >>> "Cesar Delgado" <beettlle_at_hotmail.com> 03/01/04 01:30PM >>>
> > I've had luck starting VMD with the binary and not the shell
script
> > which
> > calls it.  When you call VMD it calls a shell script that sets
> > environment
> > variables and such.  To run Chromium call the binary, it should be
> > /usr/local/lib/vmd/vmd_LINUX, not the shell script.  Check out the
> > shell
> > script though and set those environment variables yourself.
> >
> > Cheers,
> >
> > -Cesar Delgado
> > ---------------------------------------------
> > Research Computing Facility @ UNL
> > http://rcf.unl.edu 
> > cdelgad2_at_bigred.unl.edu, beettlle_at_hotmail.com 
> >
> >
> >
> >
> > >From: "Brian Dotson" <Brian.Dotson_at_netl.doe.gov>
> > >To: <vmd-l_at_ks.uiuc.edu>
> > >Subject: vmd-l: Using VMD with Chromium
> > >Date: Mon, 01 Mar 2004 07:59:34 -0500
> > >
> > >Hello,
> > >
> > >I am trying to run VMD on a 3 x 3 tiled display system.  I have
> > >Chromium running on the system and have tested it by running the
> > >chromium sample code.  I tried running vmd the same way as I did
the
> > >samples, but VMD starts on the machine I start crappfaker on and
not
> > the
> > >tiled display.
> > >
> > >Any help would be appreciated.
> > >
> > >Thanks in advance,
> > >
> > >Brian Dotson
> > >National Energy Technology Laboratory
> > >
> >
> > _________________________________________________________________
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>--
>NIH Resource for Macromolecular Modeling and Bioinformatics
>Beckman Institute for Advanced Science and Technology
>University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
>Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
>   WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078
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