How to enable recent comments to display on attachment post

To enable recent comments widget to show comments from your gallery attachment images.
Put this code into your function.php

[code]
function wpse80087_widget_comments_args( $args )
{
$args = array( ‘number’ => 5, ‘post_type’ => ‘attachment’, ‘status’ => ‘approve’, ‘post_status’ => ‘inherit’ );
return $args;
}
add_filter( ‘widget_comments_args’, ‘wpse80087_widget_comments_args’, 10, 1 );
[/code]

Thanks to Diggy