Thanks Karl !! I could call fullScreenOn and Off from workspace and same 
behavior happened, with the only difference that after switching off the 
display turned up black not white.

But, sadly, this test doesn't gave me more information, no return error 
debugging information was printed out.

I have to take another approach to find out, what is happening.

Regards.

Gustavo.

On 03/17/2014 02:09 PM, karl ramberg wrote:
>
>
>
> On Mon, Mar 17, 2014 at 4:02 PM, Gustavo Duarte <gus.duarte at gmail.com 
> <mailto:gus.duarte at gmail.com>> wrote:
>
>     Hi all,
>
>     This post comes from an old thread named as "Scratch 1.4 on
>     squeak-vm 4.10". I renamed this topic to be more clear regarding
>     what the problem is.
>
>     After followed suggestions by the list on the previous thread, I
>     realize that the problem isn't on Scratch, instead could be on the
>     squeak-vm.
>
>     I did a test, using squeak-vm 4.10 with Squeak3.9a.from3.0.image,
>     when go to full-screen ON and then switch to OFF, the Squeak is
>     hangs and the windows turned white.
>
>     To figure out whats is happening, at this point, i have (i think
>     so) two options to following researching:
>
>     1) Execute the fullscreen ON-OFF from Workspace.
>
>         I found that full-screen ON-OFF is performed by
>     ScreenController class and fullScreenOff and fullScreenOn methods.
>         How I should call this class from Workspace ?
>
>         I tried something like:
>
>         ScreenController initialize fullScreenOn
>
>         And an exception was arised.
>
>
> Project current fullScreenOn
>
> Cheers,
> Karl
>
>
>
>     2) This option could be hardest, i guess. Download squeak-vm
>     source, add debug code on sqUnix11.c and debug it.
>
>
>     I would like to start from option 1, that seems like effortless.
>
>     Some another suggestion ?
>
>     Thanks in advance.
>
>     Gustavo.
>
>
>
>
>
>
>
>
>
>
>
>
>

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