This works but only when i hit control + c in the terminal. Which gives control back to the parent window/process.

sub sixad {
for my $t ( @file1 ) {
   if( $t =~ m/No controller found on USB busses./ ) { 
    &warning; 
    return 
    }
   
   }

if ( $Count gt 0 ) {
   open my $OutFile2, "+>", "tmp2", or die "Can't open file: $!";

my @sixad = qq/'\/usr\/bin\/sixad --start 2>tmp2'/;
   print system qq( '@sixad' ); 

my @file2 = <$OutFile2>;
while( <@file2> ) {
   $Pane->insert("end", $_);
   }

   return;
   close($OutFile2);      
   }
      else {
      &warning; 
      return;
      }
      
};
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