With kernel version 4.3.0-040300rc4, the issue stays essentially the same.
But the sound output now systematically starts at the BEGINNING of the 2nd time I hit any 'Test' button.
So, there seems to be a slight improvement.
With kernel version 4.3.0-040300rc4, the issue stays essentially the same.
But the sound output now systematically starts at the BEGINNING of the 2nd time I hit any 'Test' button.
So, there seems to be a slight improvement.