Magnus Henoch <mange@freemail.hu> writes:

> The new system mostly works fine, but the internal screen now has thin
> horizontal lines constantly scrolling down.  Does anyone have any idea
> about what the problem might be, and how to fix it?

As some of you might have guessed, lack of iBookHacks was the
problem.  I've sent a PR about having it in xorg: pkg/36842

Magnus