[daip] TV Display on Macbook

[Eric Greisen]

emdoug at bu.edu wrote:
> Hi,
> I recently installed Aips on my Macbook.  From the get-go the tv display
> has failed to open.  I followed the instructions in the FAQ and set the
> shared memory to the suggested larger values.  I checked to see that they
> had taken effect and they had.  Now I am getting the error:
> 
> XAS: ***  Using shared memory option for speed ***
> XAS: Using screen width 1142 height 620,
>      max grey level 196 in 16 grey-scale memories
> Shared memory id failure: Cannot allocate memory
> 
> This happened after I had rebooted the computer after changing the values
> in the rc file.  I checked ipcs -a, which shows nothing is active.  I've
> rebooted again but still receive the same error.
> 
> This is a Macbook running 10.4.11
> 
> Have you got any suggestions?
> 
> Thanks,
> Ned Douglass
> 
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Try typing

sysctl kern.sysv

and see whether your new values were accepted.  Note that the shmmax 
must be exactly an integer number of megabytes and shmall must change to 
4096.

Eric Greisen