Allen J. Hall

Materials Science & Engineering, Productivity, and Life

Tag Archives: Bug

Matlab doesn’t open two windows? – Here’s a fix.

After finally installing Leopard (10.5) osX on my Powerbook G4 (Thesis writing computer), I noticed a strange behavior with MATLAB. MATLAB could no longer open more than one instance of itself. As well, it could no longer open a window once it had opened once in any login session. Strange behavior indeed.

Well, here’s the fix… it turns out that Leopard uses launchd to set the display. So, the old method of launching MATLAB was to set the display to 0.0, but this will fail after the first instance, hence the bug. What you can do is simply remove this line from the startup script in matlab (located within the startup application contents).

The line that was:

$SHELL -c 'bin/'$ARCH'/setsid bin/matlab -desktop -display :0.0 &'

should now be:
$SHELL -c 'bin/'$ARCH'/setsid bin/matlab -desktop &'

Once I changed that, everything started up fine! :)

ps- you will know you have this problem if you look at your console log immediately after launching MATLAB and it says something like:
6/29/10 9:03:34 AM [0x0-0x78078].StartMATLAB[23469] Warning: Unable to open display :0.0, MATLAB is starting without a display.

iPhone/iPod software version 2.2 appears to break Fring: Fixed!

It appears that the latest version of the Apple iPhone and iPod software (2.2) breaks the current release of Fring. Currently Fring users who have updated are finding they can no longer connect to the Fring servers. I’ve been wondering for quite some time if Apple doesn’t syphon all IP traffic through a central hub, then off to the internet, but it’s just my own head. The reason being that Apple could control malicious software if they controlled the iPhone and iPods in this manner.

In anycase, Fring on the iPod and iPhone currently is inoperable. I wish the dev team luck in finding a solution. I even ordered a mic for the iPod in order to use Skype and/or Gizmo (currently only 1 VOIP server can be used at a time) with my iPod. So, it appears I have to either deprecate my phone (may be very difficult to do), or hope that Fring solves this quickly.

Here’s a thread I came across on Fring’s forums describing the issue: iPod Touch and version 2.2 issue.

Update! Fring says they have a fix and it should hit the AppStore soon! Excellent. (See Above Thread on the Fring forums.)

A Quick Introduction...

I'm a graduate student (PhD Candidate) at the University of Illinois at Urbana-Champaign.

I've studied and researched in two fields of Materials Science and Engineering (Polymers and Semiconductors). My interests are as diverse as my musical tastes and I usually have my hand in some crazy project during my free time.

I'm available for consulting and have access to a world-renown materials research user-facility supported by the D.O.E. If you would like to know more, please contact me.

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