Problem with multiple characters displayed as one

[Jeremy Hall]

Hi,

I upgraded to Ubuntu 18.04 recently on aarch64 (Odroid-C2).

Now I find that if I print a sequence of 7 or more identical characters with addstr() (or addchnstr()) they are compressed to single character.

The ncurses version is 6.1

This little program demonstrates the problem:

#include <ncurses.h>

int
main()
{
  initscr();
  raw();
  nonl();
  noecho();

  move( 10, 0 );
  addstr( "The following line with 6 'x's displays correctly" );
  move( 11, 0 );
  addstr( "xxxxxx" );

  move( 14, 0 );
  addstr( "This line with 7 'x's does not (it will show a single 'x')" );
  move( 15, 0 );
  addstr( "x" );

  move( 17, 0 );
  addstr( "Press any key to quit:" );
  getch();
  endwin();
}

Can anyone help?