Comment 2 for bug 987770

Thanks for reporting this bug.

Note that you can get 'properly' sized consoles using 'lxc-console'. The
console you get from lxc-start is special, for instance you can also dump
it to a file with -c. If you don't want the initial console at all, you
can avoid taking up your terminal by doing 'lxc-start -n container -d' to
detach the original console, then 'lxc-console -n container' to get a
properly sized console.

The sizing behavior has always been as you describe. I'm not sure whether
to consider it a bug or not - we should discuss it with upstream. In the
meantime, I'll mark this bug confirmed and wishlist priority, so we don't
forget about it.